GuoGu (Jimmy Yu) is a Chan (Zen) is the founder of the Tallahassee Chan Center and the founder of the socially engaged intra-denominational Buddhist organization, Dharma Relief. GuoGu is also an Associate Professor of Buddhism and East Asian religions at Florida State University. He was the late Master Sheng Yen’s senior and closest disciples for close to four decades, nine of which as the master’s attendant monk. He is the author of Silent Illumination (2021),  The Essence of Chan (2020), and Passing Through the Gateless Barrier (2016).