Tan Kaccāna was born in 1976 in Cincinnati, Ohio. While he was in high school, his parents introduced him to the practice of meditation as taught by Śri Ecknath Easwaran. After graduating from Harvey Mudd College, he moved to Berkeley to pursue graduate study in physics. In Berkeley, he continued daily meditation practice, went on retreat at Spirit Rock Meditation Center and the City of Ten Thousand Buddhas, and participated in the Abhayagiri Upāsaka program. Realizing that monastic practice might be of great benefit to himself and others, Tan Kaccāna came to Abhayagiri a month after completing his PhD. After two years in training as an Anāgārika and Sāmaṇera, Tan Kaccāna received the higher ordination and became a Bhikkhu on October 26, 2008, with Ajahn Pasanno as his preceptor.