What is the "Yin-Yang Pass" in fortune telling? Who can explain it in detail?

For example: white seventy-three, eighty-four, yin and yang, gossip, six hexagrams. Ground 12 sub-bureau. Each hexagram contains twelve earthly branches, and six hexagrams multiplied by twelve earthly branches equals seventy-two Huntian Jiazi. 72 is the figure of full profit. Such as the only "seventy-two phenology" of all things. Seventy-two is seventy-three. This is seventy-two phenology, seventy-two muddy days, plus the sixth highest and fifth highest in the gossip, and it is close to advance and retreat, and it is dead if it is not born, and it is alive if it is not dead, so it is closed. Seventy-two years old, that is, seventy-three, seventy-two muddy days are over. Eighty-four is another new life after breaking through gossip. It's a new Sunday, and it's also a new "Don't use the hidden dragon". For example, the child is young and weak, and after he is 84 years old, he has passed a pass. Because at the age of eighty-four, it is naturally eighty-four, and the "hidden dragon" is also strong. It is no longer "it is not suitable to use hidden dragons", but "it is good for adults to see dragons in the field"!