Selene was the goddess of the moon and Endymion was a handsome prince.They fell in love with each other and they get married.
But Endymion was a mortal man, so Selene went to Zeus to immortality, Zeus granted but only one condition, Endymion asleep forever, and Selene accepted.
Selene kissed his eyes while sleeping.
He slept forever> eternal youth acquired
Shortly, they get married but boy asleep forever.
