The early ancient Greeks often associated some goddesses with natural phenomena. These natural phenomena have extremely powerful power, so people believe that they are controlled by supernatural life. Among them, the gods in charge of hunting and the goddess in charge of fertility (Artemis) are particularly important.
In the eyes of many wizards, goddesses are divided into three categories: 17-year-old sweet girls, mature women and old women. Since ancient times, Triple Goddess have appeared in many cultures. The typical Triple Goddess in witchcraft are Artemis, Selene and hecat among the Greek gods, and they are all closely related to the moon.
Source: @such.a.scream