Taiji (太極) is a quintessential concept spanning thousands of years of Chinese history. Immersed in this ancient tradition and reflecting on his profound personal experience, Gong Yan developed Interior Taiji (太極合一靈修) as a unitive praxis, which has enriched the personal and social lives of contemporary China for over a decade. This article begins with a brief introduction to the practice of Interior Taiji. It then explores Gong’s approach to affect in the light of mystical theology, followed by a conceptualisation of the praxis of Interior Taiji and its professional ethics through medieval affect and contemporary affect theories. Finally, by considering Interior Taiji in conversation with contemporary philosophy and the thoughts of Pope Francis, I present an open horizon for Chinese Catholic theology that the boundaries of religious thought, attends to the process of integral health, and expresses the lived wisdom of the Chinese people.