In comparative mythology, parallelomania is the phenomenon in which scholars perceive similarities, parallels and analogies between myths. Ironically, the term is often used in a derogatory manner to describe non-religious scholars.
Examples of parallelomania include, for instance, the fact that many cultures have believed in a deus otiosus, a personal god who interferes with humanity; flooding myths are common also; as are creation myths in which a group of younger, more civilized gods struggle against a group of older gods who represent the forces of chaos; there are also many stories about divine figures whose death creates an essential part of reality; and many mythologies mention a place that sits at the centre of reality and acts as a point of contact between different levels of the universe.
“He was a saviour, Mithras, sent to earth to live as a mortal, through whom it was possible for sinners to be reborn into immortal life. He died for our sins, but came back to life the following Sunday. He was born of a virgin on December 25th, in a manger or perhaps a cave, attended by shepherds, and became known as ‘the light of the world’. He had twelve disciples, with whom he shared a last meal before dying. His devotees symbolically consumed the flesh and blood of him. Because Mithras was a sun god, he was worshipped on Sundays. […] There’s a great deal in Christianity that is traditional. And however wonderful people think the story is, it’s, frankly, not original.”
– Stephen Fry