Stay together friends. Don't scatter and sleep.

Our friendship is made of being awake. -- Rumi

To study the Way is to study the self. To study the self is to forget the self.

To forget the self is to be enlightened by all things. To be enlightened by all things

is to remove the barriers between one's self and others. --Dogen Zenji


 Welcome to Silver Spring Zendo/One Heart Sangha


Sensei Bob Jin Gen Ertman
Sensei Rose Mary Myoan Dougherty


The One Heart Sangha is a community of Zen students who sit together on a regular basis to support one another in staying awake, moment-by-moment, to see and live our true nature, our at-one-ment with all.  One Heart Sangha exists to support the ongoing practice and compassionate presence of its members. Our lineage is that of the White Plum Asanga which was established by Taizan Maezumi Roshi and draws heavily on the teachings of the Soto School of Zen, founded by Dogen Zenji in the 13th century.

We offer morning and evening zazen practice sessions, and monthly all day sittings (zazenkai), as well as longer residential practice sessions (sesshin). Zen practitioners and beginners welcome--we are a welcoming group!

Silver Spring Zendo/One Heart Sangha is a non-profit organization. We ascribe to the White Plum Asanga Code of Ethical Conduct.  We are affiliated with the Zen Peacemakers Sangha, founded by Roshi Bernie Glassman. Its members are individuals, groups and organizations dedicated to realizing and actualizing the interconnectedness of life.


  • Upcoming Residential Sesshins at Holy Trinity Spiritual Center, 8400 Park Heights Avenue North, Pikesville, MD 21208. May 9-12, 2018; August 29-September 2, 2018.
  • For Membership  information, see next page under Weekly/Monthly Events.
  • To register for any events, or if you wish to contact the Sangha, please email:



Sensei Bob Jin Gen Ertman

Sensei Bob Jin Gen Ertman is a dharma heir of Rose Mary Myoan Dougherty, Sensei, and a long-time member of the Silver Spring Zendo/One Heart Sangha.  He is currently serving as the guiding teacher for the sangha. He is also a member off the Zen Peacemakers and is grateful for the way it has shaped his practice in all of life. He writes and teaches haiku as a practice of being fully in the present moment. He received the precepts at Boundless Way Zen from James Ford, David Rynick, & Melissa Backer.  Bob is a retired federal attorney and lives in Annapolis with his wife, Phyllis.  Together they are facilitators of a Mndfulness Practice Group at the Unitarian Universalist Church of Annapolis. In his spare time, Bob collects fossils, with his daughter Hallie when he can (They began when she was 4--she's 28 now).

Sensei Rose Mary Myoan Dougherty is the sangha's first guiding teacher and founder of One Heart Sangha/Silver Spring Zendo.  She began her Zen studies with Charlotte Joko Beck and is dharma heir of Janet Jinne Richardson Roshi. She completed the End of Life Counseling Program at Metta Institute in California. She currently teaches in the Baltimore area.