What does four-poster singing mean? How to explain it specifically?

Moon column and sun column, year column and time column. It's called four pillars. If the heavenly stems and earthly branches of these four pillars is the same, it's called Yin Fu. For example, if the annual column is not full, the moon column or the sun column is not full, all of them are chanting. At the end of the year, the column of that day or hour is full of bitterness and ugliness. These are all the knowledge in Zhouyi Feng Shui, which is very profound. Yin Fu is divided into Tian Gan Yin Fu and Zhi Yin Fu. The original intention is to say that those who are not there will come and those who are already there will go. Yin Fu's meanings are as follows: going out (the gateway of Yin Fu), internal strength (the yin star of Yin Fu), lending (Yin Fucai star), getting married (one person becomes two people), suffering (Yin Fu is jealous of God and wants to split himself in half, or lying in bed crying and moaning), happiness (Yin Fuxi, in pairs), leaving and coming back (repeatedly). Four-pillar chanting means: the year of four-pillar chanting, that is, the year of birth, or the year of sun-pillar chanting, there are three taboos in the Jianghu: 1, don't participate in white affairs; 2. Don't visit the new house; Don't go to the hospital or the patient. Otherwise, bad luck arrival, all kinds of bad luck!