Are there really seven customs in Taoism?

Not only Taoism, but also Tibetan Buddhism has this saying. This is a trick that must be paid attention to when practicing meditation. The bottom chakra (perineum), umbilical chakra (abdomen), abdominal chakra (upper abdomen), throat chakra (articular process), eye chakra (Tang Yin), top chakra (Baihui Gate) and top chakra (Infinite Gate). Southern Buddhism and Han Buddhism don't exist.