Original pinner said: "Isis ( Aset in Egyptian) was originally a Goddess from Nubia and was adopted into Egyptian belief. Her name literally means female of throne, Queen of the throne. Wife and sister to Asar ( Osiris) and mother of Horus.
Isis, mourning the death of her brother and lover Osiris yearned for him so much beseeches Thoth to teach her to raise him from the dead. In doing so spent one final embrace together and before he died Isis conceived a son.
Tefnut was the Egyptian goddess of the moisture of the sky. She represented rain and the principles of order. She was the primeval goddess personifying the moist, humid air of the Nile. She rules all aspects of water, including humidity and drought.