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THREE TREASURES SANGHA of the Pacific Northwest (TTS) is a lay Zen group located in Seattle, Washington. and TTS is affiliated with the Diamond Sangha, an independent lineage founded by Robert Aitken Rōshi, dharma heir in the Sanbō Kyōdan (Harada-Yasutani-Yamada) lineage.

Our form is derived from Japanese Zen tradition, favoring simplicity. While we focus on individual sitting meditation (zazen), we also recite texts (sutras) together. Talks by and private interviews with teachers provide a chance to ask questions and to refine our understanding. Our practice emphasizes experience over concepts, so no beliefs are necessary; it allows us direct experience of underlying reality, and is therefore not in conflict with other faiths. This practice fosters concentration and clarity of mind, going to the core of all spiritual work.

All aspects of Zen practice are designed to foster immediate engagement with the boundless totality available to us all — it is both personal and engaged with community and the world in which we live. We warmly invite you to join us.

Getting Started with Three Treasures Sangha

You do not need to be a member of Three Treasures Sangha to sit zazen with us. If you’re a beginner, though, we do ask that you attend an orientation with us about how to sit zazen.

You can learn more about opportunities to practice with us on our Practice page.

If you’d like to become a member please visit our Join Us page.


TTS Zendo Entrance





DHARMA GATE in Seattle is our primary zendo. This renovated house includes zendo, dokusan (interview) room, library, kitchen, and kinhin (walking meditation) garden. Our weekly and monthly sittings, and garden retreats are held here.

Dharma Gate is located at 1910 – 24th Ave S. P.O. Box 12542 Seattle, WA 98111




Mountain Lamp Zendo




MOUNTAIN LAMP is a rural retreat center located in Deming Washington and is where Three Treasures holds its spring and fall sesshins each year.



Dharma Gate Zendo
1910 – 24th Ave S.
P.O. Box 12542
Seattle, WA 98144

Three Treasures Sangha Mailing Address
P.O. Box 12542
Seattle, WA 98111


Teacher: Jack Duffy
Call: 360-592-5248



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