《易经》将宇宙天地和人类社会总结为阴阳两种势力,并认为是阴阳两种力量的交互感应,推进了宇宙天地和社会的发展。阳代表天,阴代表地,阴阳交感产生万事万物。阳代表男,阴代表女,阴阳交感产生人类以及社会。所以,《易经》中一些“吉”的卦,一般都是上下两卦具有相通交感性质的,具有运动变化的特征;与之相反,一些“凶”的卦,一般都是上下两卦没有相通交互感应而停滞不前的。也就是说, The Book of Changes summarizes both the cosmic world and the human society as two kinds of forces of yin and yang, which are regarded as the interaction of the two forces of yin and yang, and promote the development of the universe and the society. Yang on behalf of the day, on behalf of Yin, yin and yang sympathy produce everything. Yang on behalf of men, on behalf of female Yin, yin and yang interaction produce human and social. Therefore, some “Gui” hexagrams in the Book of Changes are generally characterized by sympathetic nature and movement-changing features; on the other hand, some “fierce” hexagrams are generally Up and down the two hexagrams do not interact with mutual inductance and stagnation. In other words,