Whenever Tibet is introduced, its religions are mentioned. The book entitled A Study of Tibetan Religions, gives a comprehensive introduction to the Tibetan religions. It starts with the Bon religion, focuses on Tibetan Buddhism and then has a brief introduction to Islam and Christianity, reflecting the concepts of "harmony" and "wholeness" of Chinese traditional culture. 千百年来，生活在西藏雪域高原的先民，在与自然的和谐融合中，孕育了具有浓郁高原特色的精神世界。西藏宗教产生、衍化和流布，呈现了宗教文化品性与世俗文化特征的相互渗透和融合。