Super Intelligence: Memory Music, Focus Music for Better Concentration, ...

Another myth tells of how Isis created a magical serpent out of dust and Ra's spittle. She placed the serpent on the path that the sun god usually took when he was traveling by day, and the serpent bit him. Ra had power over all things, and so he ordered the poison to leave his body. However, as the serpent had been made from Ra's own spittle he was unable to cure himself. He called on Isis (who was already a great magician and healer). She told him that she could only heal him if she knew his secret name. Ra tried to fob her off with some of his lesser names, but eventually he relented and told her his true name. Isis immediately cured Ra, but he could not take back the power that he had granted her by telling her his true name and from that point on Isis was equal even to the sun god in power.