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Retreat Teachers

Geoffrey Shugen Arnold, Roshi

Geoffrey Shugen Arnold, Roshi is the Head of the Mountains and Rivers Order and Abbot of Zen Mountain Monastery. Shugen entered full-time residential training in 1986 after studying mathematics and receiving a degree in classical music. He received dharma transmission from John Daido Loori, Roshi in 1997. His teachings on Zen, social justice and environmental stewardship have appeared in various Buddhist journals, and The Best Buddhist Writing 2009 (Shambhala Publications). His book of poetry, O, Beautiful End, a collection of Zen memorial poems, was published in 2012.

Events with Geoffrey Shugen Arnold, Roshi

Mountains and Rivers Sesshin
September 21 - 27, 2026

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each day before dawn to begin a schedule that includes 7 to 10 hours of zazen,…

One Continuous Thread: Home Practice Intensive—September
September 21 - 27, 2026

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
October 2 - 4, 2026

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Harvest Sesshin
October 19 - 25, 2026

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each day before dawn to begin a schedule that includes 7 to 10 hours of zazen,…

One Continuous Thread: Home Practice Intensive—October
October 19 - 25, 2026

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
October 30 - November 1, 2026

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Ango Intensive - Buddha Nature: Revealing the Jewel Within
November 5 - 8, 2026

If an inexhaustible treasure were buried in the ground beneath a poor person’s house, the person would not know of it, and the treasure would not speak and tell them, “I am here!” Likewise, a precious treasure is contained in each being’s mind. This is its true state, which is free from defilement. Nothing is to be added and nothing is to be removed. – Uttaratantra (Buddha Nature) Shastra The Buddha said, “If you want to understand buddha nature, you should intimately observe cause and effect over time. When the time is ripe, buddha nature manifests.” – Shobogenzo Bussho, Buddha Nature,…

Online Ango Intensive: Buddha Nature - Revealing the Jewel Within
November 6 - 7, 2026

If an inexhaustible treasure were buried in the ground beneath a poor person’s house, the person would not know of it, and the treasure would not speak and tell them, “I am here!” Likewise, a precious treasure is contained in each being’s mind. This is its true state, which is free from defilement. Nothing is to be added and nothing is to be removed. – Uttaratantra (Buddha Nature) Shastra The Buddha said, “If you want to understand buddha nature, you should intimately observe cause and effect over time. When the time is ripe, buddha nature manifests.” – Shobogenzo Bussho, Buddha Nature,…

Shuso Hossen Sesshin
November 16 - 22, 2026

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each day before dawn to begin a schedule that includes 7 to 10 hours of zazen,…

One Continuous Thread: Home Practice Intensive—November
November 16 - 22, 2026

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
December 4 - 6, 2026

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Rohatsu Sesshin
December 26, 2026 - January 1, 2027

In the Zen tradition, Rohatsu sesshin celebrates the Buddha’s enlightenment and is traditionally the most intensive and challenging sesshin of the year. Each day begins well before dawn (3:45 am) and is a continuous practice of meditation throughout the day while sitting, walking, standing and lying down. There are from nine to eleven hours of zazen (the time for sitting meditation increases each day), chanting services, formal silent meals in the zendo (oryoki), silent work practice and talks by teachers and senior students. Sesshin is also an opportunity to receive personal guidance in private interviews with the teacher, and to…

One Continuous Thread: Home Practice Intensive—December
December 27, 2026 - January 1, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
January 8 - 10, 2027

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

New Years' Sesshin
January 25 - 31, 2027

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each day before dawn to begin a schedule that includes 7 to 10 hours of zazen,…

One Continuous Thread: Home Practice Intensive—January
January 25 - 31, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Bodhidharma Sesshin
February 15 - 21, 2027

**There are no formal talks and only limited face-to-face teaching offered during Bodhidharma sesshin** Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. (Please note: Zen Training Weekends and other non-sesshin retreats at ZMM do not qualify as sesshin. Please call the Training Office if you need clarification) Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool. …

One Continuous Thread: Home Practice Intensive—February
February 15 - 21, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Weekend Sesshin- Spring Ango Opening
February 26 - 28, 2027

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. (Please note: Zen Training Weekends and other non-sesshin retreats at ZMM do not qualify as sesshin. Please call the Training Office if you need clarification) Sign up for a pre-sesshin interview here. If registration is full, please Join the Registration Pool.  Because there are a limited number of spots, and to ensure equitable access to…

Introduction to Zen Training Weekend
March 5 - 7, 2027

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Founding Sesshin
March 22 - 28, 2027

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register, so please call or email the Training Office to schedule at (845) 688-2228, or registrar@dharma.net. Since there are a limited number of spots, please sign up for only 1 or 2 sesshin per quarter.  If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each day before dawn to begin a schedule…

One Continuous Thread: Home Practice Intensive—March
March 22 - 28, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
April 2 - 4, 2027

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Apple Blossom Sesshin
April 19 - 25, 2027

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register, so please call or email the Training Office to schedule at (845) 688-2228, or registrar@dharma.net. Since there are a limited number of spots, please sign up for only 1-2 sesshin per quarter. This session must be joined no later than Thursday. If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training. We wake up each…

One Continuous Thread: Home Practice Intensive—April
April 19 - 25, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

Introduction to Zen Training Weekend
April 30 - May 2, 2027

Whether you’re completely new to Zen Buddhism or looking to deepen your connection, our popular introductory retreat offers an immersive experience in an ideal setting, nestled in the heart of the Catskill Mountains. During the weekend, you’ll receive instruction in zazen (seated meditation) and have a chance to experience and ask questions about liturgy, work as sacred activity, art and body practice, the teachings of wisdom and compassion, and how to approach Buddhist study. We’ll discuss how to establish a consistent home practice and you’ll receive guidance on bringing mindfulness and clear intention into your work, family, and relationships. You’ll …

Ocean Gathering Sesshin
May 24 - 30, 2027

Because sesshin is a very intensive retreat, if you have not attended sesshin at Zen Mountain Monastery you must have a pre-sesshin interview before you register. If you have questions about this process, please call or email the Training Office at (845) 688-2228, or registrar@dharma.net. Sign up for a pre-sesshin interview here. Since there are a limited number of spots, please sign up for only 1 or 2 sesshin per quarter.  If registration is full, please Join the Registration Pool.  Characterized by silence and deep introspection, sesshin is recommended to anyone who is sincerely interested in experiencing intensive Zen training.…

One Continuous Thread: Home Practice Intensive—May
May 24 - 30, 2027

Welcome to One Continuous Thread, a way to bring elements of a formal zazen intensive into your daily life. You will be able to participate with ZMM’s Sesshin via live webcast. We’ve designed this retreat keeping in mind the unique circumstances that each person finds themselves in. Some people can engage fully with a sesshin schedule in their homes; others may seek the rigors and rewards of a zazen intensive while navigating their ongoing responsibilities to work, family and friends. One Continuous Thread can hold it all as we sit together, even while our needs and experiences might be quite diverse.…

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