The difference between the entry and exit of horses.

Out-of-phase is the state in which two stars walk out of this phase, and in-phase is the state in which two stars enter this phase. In ancient times, going out into the phase meant being a general and prime minister in feudal society, which meant being an official. On the astrolabe, appearance means that two stars have become this position, and in the state of moving out of this position, appearance means that two stars have entered this phase. Generally speaking, due to the long duration, the impact of entering the stage is greater.