Mariolatry.

The worship of a Mother Goddess and her son formed a distinct feature in the paganism of Babylon, India, Egypt, Assyria, Greece, and Rome. Though variant in conception, the core of Mariolatry runs through all these pagan systems. Those who desire to follow this theme in detail will do well to consult Alexander Hislop.[245] A single extract from page 82 of that work is all that space will permit:

“The worship of the Goddess-Mother with the child in her arms continued to be observed in Egypt till Christianity entered. If the gospel had come in power among the mass of the people, the worship of this goddess-queen would have been overthrown. With the generality, it came only in name. Instead, therefore, of the Babylonian goddess being cast out, in too many cases her name only was changed. She was called the Virgin Mary, and, with her child, was worshipped with the same idolatrous feeling by professing Christians, as formerly by open and avowed pagans.”