Hephaestus is the god of fire, […] As a flame arises out of a little spark, so the god of fire was delicate and weakly from his birth, for which reason he was so much disliked by his mother, that she wished to get rid of him, and dropped him from Olympus. But the marine divinities, Thetis and Eurynome, received him, and he dwelt with them for nine years in a grotto, surrounded by Oceanus, making for them a variety of ornaments.