The book "Mazu Daoyi and Dazhu Huihai" offers a deep insight into the teachings of two outstanding Chan masters of the 8th century. Mazu Daoyi, known for his unconventional views, and his student Dazhu Huihai represent the Hongzhou school of Chan Buddhism, which endured despite persecution in the 9th century. Their philosophy emphasizes the individual quest for Buddhahood and the rejection of rigid dogmas. Mazu taught that each person must find their own path to enlightenment, which is reflected in his famous sayings. The texts in this book, which have been passed down orally for centuries, provide valuable insights into the development of Chan Buddhism and its influence on spiritual practice in China. This collection is significant not only for those interested in philosophy and religion but also for anyone looking to engage with the history of Buddhism.