What is the meaning of handover ventilation in fortune telling?

Hello! Correct the typo first. You should write "exchange breath". It's time to switch to the next solar term. For example, the sixteenth day of the first month of this year is a shock, and the sixteenth day of the first month is a time to exchange breath. In fortune telling, we should make clear the breath exchange of "fixed moon order", "good luck" and "year"