Guo Gu (Dr. Jimmy Yu) is the founder of the Tallahassee Chan Center (www.tallahasseechan.com) and is also the guiding teacher for the Western Dharma Teachers Training course at the Chan Meditation Center in New York and the Dharma Drum Lineage. He is one of the late Master Sheng Yen's (1930–2009) senior and closest disciples, and assisted him in leading intensive retreats throughout the United States, Europe, and Asia. He is also a professor of Buddhism and East Asian religions at Florida State University, Tallahassee. In the 1980's, he played bass in Judge and Death Before Dishonor in the New York Hardcore scene.

See his writing at: https://www.lionsroar.com/author/guo-gu/