What do yang and yin mean?

The stubborn yin is the old yin, is it useful? Representative, Jiang Yang Lao Yang, X. ..

In the eight diagrams, a horizontal "-"is positive, and a horizontal "-"is intermittent. If it's yang, it starts at nine, and yin starts at six, but the first one puts ninety-six behind, so if it's all yang, it's the ninth day, the second day and the third day. Full yin is the sixth day, the second day and the third day.

Development:

The hexagrams in the Book of Changes refer to the images of hexagrams, which are composed of two kinds of hexagrams, namely "Yang" and "Yin". There are 64 hexagrams arranged and combined according to six diagrams of each hexagram.

The meaning of divination in Zhouyi is the origin of divination, and the following divination is how the origin will only change in the following different changes. Just like a seed, no matter where it is planted, the nature of the fruit will not change, but it is not necessarily because of the influence of external conditions.