What did the moon mean in ancient times?

In ancient times, there were no clocks to watch, and the bright moon represented time. Just like the rooster's crow represents getting up, the moon will be very bright on the first and fifteenth day of the lunar month, representing half a month. Therefore, many poets will use the bright moon to express their love for home. Missing my loved ones. The light of the bright moon brings comfort to people in the dark night, and is also used to express lovesickness.