What is the meaning of "Yin and Yang" in "Thirty-six Plans"?

In fact, it should be understood like this:

In the first sentence, "Tai" means extreme, "Yang" means open and exposed, and "Yin" means hidden, confidential and unknown.

So "yin is in yang, not in yang." Sun, Moon "means" secret plans are hidden in open and obvious things, and hidden things are not opposed to open forms. Very public things often contain very secret plans. "

"Yin and Yang" in the second sentence means "virtual and real", which means "false appearances confuse the enemy, not all of them are false, but make the false become true, really become false, and cover up the real intention with false appearances of all sizes to confuse the enemy."