John Martin teaches Vipassana (Insight), Metta (Loving Kindness) and LGBTQIA+ meditation retreats. He leads an ongoing weekly Monday evening meditation group in San Francisco. He serves as Co-chair of the Guiding Teachers Council for Spirit Rock. His practice has been supported by twelve years as a hospice volunteer: including five years at Shanti Project during the AIDS crisis, and seven years with the Zen Hospice project.