What religious beliefs did the ancient Greeks have?

All the beliefs of the Greeks came from mythological creatures – the gods. the ancient Greek pantheon of gods was very wide. The Greeks believed that all deities live on Mount Olympus, where the main god, the Thunderer Zeus, rules. Another place where the gods lived was the underworld of Hades. Hades was Zeus’s brother, he was engaged in watching over the souls of all the dead. Sometimes there were times when Hades allowed the dead to leave their kingdom, as in the case of Orpheus and his beloved Agrippa.