Human beings have been exploring the meaning of life ever since human civilization started.This book uses scientific context and builds an intertwined network system of all wisdoms. By using the principle of simplicity, it distill the key terms and core logical relations. It is the common intellectual wealth of mankind and does not belong to any person or organization. It is a hub connecting all wisdom languages; an internal bridge that seeks commonalities and existing for the harmonious symphony of multiculturalism in the world. Seeking Commonality and Respecting Differences are the basic principles for entering the secular world - by respecting the reasonableness of all existence in terms of their space and time, because the common ultimate pursuit of all lives is the fundamental significance of diversified and multifaceted lives.The ultimate purpose of all description systems is the sole truth.Each of the descriptions, when faced with the ultimate truth, would have its unique meaning, as well as its relative restriction. Only when one is not restricted by any single description system would one be able to truly and comprehensively embrace and accept all description systems, and turn each encounter in life into a supportive condition through one's inner development, and to be industrious in every moment in life for one's self cultivation in this multicultural world. With such mentality one would be able to bury the hatchet, to turn afflictions into Bodhi, and to all sounds into a harmonious symphony. 劉豐老師：人類對生命意義的探索一直伴隨著人類文明的發展，經過近兩千五百年發展的宗教，及近幾十年發展起來的新時代運動，建構了數不清的對生命意義的描述系統。站在有限的空間層次看到的是無窮無盡的分別，而從整體宇宙的視角觀到的則是合一，照見的是一切可