Polytheism: Initially, man worshipped Gods in forms of nature and components of man’s mind, which too continues till date. Greeks/Romans worshipped nature as Jupiter/Zeus (Thunder), Apollo (Sun), Ceres (Earth), etc. along with feelings/doings as Cupid (Love), Somnus/Hypnos (Sleep), Minerva (Wisdom), etc. and other creations of man like Janus (God of Doors),