During the Autumn Equinox it is believed the Ancient Greeks celebrated the Eleusinian Mysteries (also sometimes referred to as the Elysian Mysteries). This seems to fit as it is a dedicated to Demeter to be part of harvest time. However, like many rituals of this time, the ceremony itself is shrouded in mystery. In China, Taiwan and Vietnam they celebrate a lunar harvest festival called Moon festival, Mooncake Festival or Zhongqiu. This is a celebration for Chang’e, the Moon Goddess, as this is the only day of the year that she can visit her husband Houyi, who lives on the sun. This is a celebration of the light/dark and yin/yang and this is done by eating mooncakes, matchmaking, lightning lanterns and fire dragons dances. Higan is the Buddhist celebration to the Autumnal Equinox and translates as “the other or that shore of Sanzu Rive”. It is believed that this euphemism for enlightenment, moving from the shores of ignorance on to the shores of Enlightenment. This is a celebration in the form of memorial service and visiting the graves of those that passed.
A little later on the 29th of September is the Michaelmas, (or the feast of St. Michael). Michael is considered the most important of the archangels and it is believed that he bested Lucifer. Because Lucifer translates as the light-bearer, it seems an appropriate time for this festival. As the Autumn Equinox is seen as the sun weakens, it can be a symbolical time of the death of Sun Gods. Michael is seen as protector against darkness and therefore an apt person for the coming winter months.