It was said [ who? ] that Isis tricked Ra into telling her his "secret name" by causing a snake to bite him, the antidote to whose venom only Isis possessed. Knowing his secret name thus gave her power over him. The use of secret names became central in many late Egyptian magic spells. 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.
The preparations of these recipes is much more complex than the later Greek versions and there are also more ingredients. The mastic, pine resin, sweet flag, aspalathos, camel grass, mint and cinnamon are ground together in a mortar and the liquid residue discarded. Then the cyperus, juniper berries, pine kernels and peker are ground to a fine powder and combined with the mastic mixture. The combined mixture is moistened with a little wine and left to steep overnight. The raisins are steeped in wine and combined with the mixture and this is allowed to steep for a further five days. The mixture is then boiled until it has reduced by one fifth and the honey and frankincense are combined and boiled to reduce by one fifth. The two mixtures are combined and the myrrh is then ground and added to make the final mixture which was formed into small pellets for burning.