Tomb-Sweeping Day happened to meet leap February. What happened?

The leap month of the Lunar New Year of the Rabbit is February this year.

According to the running law of the sun, the ancients in China divided a year into 24 solar terms, including 12 solar terms and 12 solar terms. The date on the solar calendar is relatively fixed, while the lunar calendar is based on the moon's profit and loss cycle, so the solar terms and neutral qi in the lunar calendar are not fixed. According to the lunar calendar, every lunar month has a neutral qi. If a month does not contain neutral gas, it is considered as a leap month in the previous month. There is a folk saying that "people are empty without qi, and the moon is leap without qi".