本书主要从义理入手，用现代的观念和科学的角度，深入浅出的阐释《易经》贵"中"、重"时"的思想和法则，以帮助读者"为天地立心"、"为往圣继绝学"，进而"究天人之际，通古今之变"，在为人处世中趋吉避凶，使自己的人生更加圆融。（Starting from argumentation and from the scientific perspective and modern ideas, this book uses simple language to expound ideas and laws of emphasizing "moderation" and "time" in The Book Of Changes, in order to help readers "set the mind for heaven and earth" and "inherit the Sage's knowledge", and then "study the relationship between nature and human society, and know the changes from the ancient time to nowadays", pursuing good fortune and avoiding disaster in behaviors and making your life more harmonious.）