Hades is the underworld god. Everyone who dies goes to Hades. Hades is everyone's enemy. Since nothing will sway him, he is rarely worshiped. Hades is sometimes worshiped as the god of wealth, since the wealth of the earth comes from what lies down below. He has a watchdog with three heads it's name is Cerberus. The key to the underworld is sometimes a two pronged axe. The Cypress and Narcissus are plants sacred to him. Sometimes black sheep were offered to him in sacrificed. The myth with Persephone is well known to everyone.