Psyche, the most beautiful woman in the world, is envied by her family as well as by Venus. An oracle of Venus demands she be sent to a mountaintop and wed to a murderous beast. Sent by Venus to destroy her, Cupid falls in love and flies her away to his castle. There she is directed to never seek to see the face of her husband, who visits and makes love to her in the dark of night. Eventually, Psyche wishes to see her sisters, who jealously demand she seek to discover the identity of her husband. That night, Psyche discovers her husband is Cupid while he is sleeping, but accidentally burned him with her oil lamp. Infuriated, he flies to heaven and leaves her banished from her castle. In attempted atonement, Psyche seeks the temple of Venus and offers herself as a slave. Venus assigns Psyche four impossible tasks. First, she is commanded to sort through a great hill of mixed grains. In pity, many ants aid her in completing the task. Next, she is commanded to retrieve wool of the dangerous golden sheep. A river god aids Psyche and tells her to gather clumps of wool from thorn bushes nearby. Venus next requests water from a cleft high beyond mortal reach. An eagle gathers the water for Psyche. Next, Psyche is demanded to seek some beauty from Proserpina, Queen of the Underworld. Attempting to kill herself to reach the underworld, Psyche ascends a great tower and prepares to throw herself down. The tower speaks, and teaches Psyche the way of the underworld. Psyche retrieves the beauty in a box, and, hoping to gain the approval of her husband, opens the box to use a little. She is put into a coma. Cupid rescues her, and begs Jupiter that she may become immortal. Psyche is granted Ambrosia, and the two are forever united.