among the eight-character heavenly stems, the combination of heavenly stems follows the combination of yin and yang, while the combination of heavenly stems follows the rule that yin and yang are opposite and the five elements are mutually compatible.
there are ten kinds of situations in which heavenly stems and earthworms are mixed, including: jiamu Kewu soil, Yimu Keji soil, Propofol Kegeng gold, Dinghuo Kexin gold, Wutu Keren water, Jitu Kegui water, Gengjin Kejia wood, Xinjinke Ethyl wood, Renshui Kegeng gold and Guishui KeDing Huo. Solemnly declare: the above contents are for reference only, please don't be superstitious.