The idea of polytheism is grounded in the view that reality (divine or otherwise) is multiple and diverse... Polytheism has allowed a multitude of distinct groups to exist more or less in harmony, despite great divergence in beliefs and practices.
Margot Adler (2006). “Drawing Down the Moon: Witches, Druids, Goddess-Worshippers, and Other Pagans in America”, p.36, Penguin