"A Brief Interpretation of Biyanlu" is a modern interpretation of the Zen classic "Biyanlu". The original book was compiled by Zen Master Yuanwu Keqin. It contains one hundred koans and incorporates the style of the Linji sect. It reveals the secrets of Zen and the profound meaning of the Zen sect in the form of commentaries, narrations, and commentaries. This brief explanation adheres to the purpose of "impressing the heart with the heart", using popular language to analyze the background, essence of koan and the wisdom of the ancestors step by step, supplemented by historical allusions and practice applications, to guide readers to break away from their own opinions and explore the source directly. The whole book pays attention to the implementation of Zen in life, integrating profound Zen principles into daily life, and providing modern scholars with a convenient path to understand the mind and nature. Through a brief explanation, readers can get a glimpse of the lively style of Zen Buddhism that "does not establish words and teaches outsiders" and realize the perfect state of pure self-nature.