Ajahn Kassapo was born in Vietnam and raised in Guangdong, China. Beginning in 1998, he lived in the Los Angeles area, where he became interested in Buddhism. After visits to various monasteries, he decided to explore monastic life. He was a member of the lay support team during Abhayagiri’s 2005 Winter Retreat, during which time he decided to request to undertake the Anāgārika training. He returned to Abhayagiri in May, 2005 and subsequently trained for two years as an Anāgārika and Sāmaṇera. Ajahn Kassapo received the higher ordination, becoming a fully ordained Bhikkhu on July 14, 2007 with Ajahn Pasanno as his preceptor. After spending a year training in Thailand, he returned to Abhayagiri in 2010.