We’ve all heard the allegations: Halloween is a pagan rite dating back to some pre-Christian festival among the Celtic Druids that escaped church suppression. Even today modern pagans and witches continue to celebrate this ancient festival. If you let your kids go trick-or-treating, they will be worshiping the devil and pagan gods.
Nothing could be further from the truth. The origins of Halloween are, in fact, very Christian and rather American. Halloween falls on October 31 because of a pope, and its observances are the result of medieval Catholic piety.
http://www.ucatholic.com/blog/the-catholic-origins-of-halloween/
It not surprising that different religious ‘special days’ seem to cluster around certain periods of the year, particularly the season changes signifying a change in daily routines for many. Many in the earlier history of man that is.
Autumn and Spring Equinoxes and their full moons — coincide with the transition from Farmer to hunter, then hunter to Farmer.