Aphrodite gave Psyche one task: to go to the Underworld and retreive a box of beauty from the Queen. Eros came to Psyche and gave her directions on how to get out of the Underworld... safe and alive!:
*Pay Charon, the boatman of the Underworld River, a coin from your mouth, so that he will ferry you into the Underworld.
*Feed Cerberus, the three-headed giant guard dog, three honycakes so that he will let you pass.
*Don't eat anything in the Underworld.
Psyche followed the instructions, and left the Underworld with the beauty box safely. But then she thought: She deserved that beauty way more then Aphrodite. And she wanted to impress Eros when they finally got MARRIED!!! So she opened the box, but when she did, she discovered not beauty, but Death Sleep...