It was said that Isis tricked Ra (i.e. Amun-Ra/Atum-Ra) into telling her his "secret name," by causing a snake to bite him, for which only Isis had the cure. Knowing the secret name of a deity enabled one to have power of the deity. The use of secret names became central in late Egyptian magic spells, and Isis often is implored to "use the true name of Ra" in the performance of rituals. By the late Egyptian historical period, after the occupations by the Greeks and the Romans, Isis became the most important and most powerful deity of the Egyptian pantheon because of her magical skills. Magic is central to the entire mythology of Isis, arguably more so than any other Egyptian deity.
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