This song is about the myth of Endymion and Selene. Selene was the goddess of the moon and Endymion was a shepherd, but they fell madly in love. Selene kissed Endymion to sleep every night. She knew that he was mortal and that he would age over time, but Endymion was put into eternal sleep for Selene so she could have his beauty forever. He was untouched by time.