The basic skill is to know the attributes of the five elements of the heavenly stems and earthly branches, A, Yi, Yin and Mao, wood, Bing, Ding and Siwu fire, Wujichen, Xuchouweitu, Gengxin, Shenyoujin, Renguihaizi, water. Do you want to say no? Yes, then find a website to arrange the four pillars. There are eight characters in the four pillars of year, month, day and hour, and see what the attributes of the heavenly stems and earthly branches are. If you have metal, wood, water, fire, and earth, there will be no shortage. Whatever is lacking, you will be lacking.