Introduction to the Sun and Moon Pool: A Feng Shui pool built according to the Hakka Feng Shui theory of "accompanying mountains and water". The pool is a semicircle, with a disk in the middle. The semicircle represents the moon, which is negative, and the disk represents the sun, which is positive, symbolizing that the sun, moon, yin and yang merge into one to form the sky. The disk is composed of five-color stones, with the year of the heavenly stems and the earthly branches engraved on it, and the cycle of reincarnation symbolizes the infinite time. The clear water gushes out and spreads out from the hole in the center of the stem and branch plate, symbolizing infinite space and time, which means the breadth and endlessness of life.