Zhouyi BenyiLine statement
Dwelling in the honored place as a yin line, it is the master of Peace; yielding, central, and emptying itself, it responds below to Nine in the Second Place—the way of good fortune. When Emperor Yi married off his younger sister, he also obtained this line in divination.
If the diviner acts like this, there will be blessings and supreme good fortune. Whenever the Classic mentions ancient figures, such as High Ancestor or Prince Jizi, all follow this pattern.