Cupid has been held in Venus (his mother’s) house but he escapes. He finds Psyche. He removes the sleeping spell and puts it back in the box. Then he wakes Psyche, and takes her to give the box to Venus.

Jupiter, King of the Gods, has agreed that Cupid can marry Psyche and warns Venus to leave her alone. He also gives Psyche a drink of ambrosia, the drink of immortality.
(24) Finally Cupid & Psyche are married, with several Gods & their attendants as guests.

Cupid and Psyche is a story originally from Metamorphoses (also called The Golden Ass), written in the 2nd century AD by Lucius Apuleius Madaurensis (or Platonicus).