Reading the second tutorial about the god Atum, the self-created god, and father and mother of himself, I remembered a tale by Robert Heinlein, in which a time traveller becomes father, mother and daughter of himself through a closed time loop.
That tale ("All you zombies", by Robert A. Heinlein) can be read here:
(PDF version here: http://www.dragon.rulez.cz/e-buk/Robert%20A.%20Heinlein%20-%20All%20You%20Zombies.pdf)
with comments here:
This thing is important because according to one of the lastest theories about the Big Bang and the origin of the Universe, the Universe was created in a closed time loop, like tale character, so our universe is a self-created universe. That is a thesis by the physicist Richard Gott III. About this theory, see more at:
© Charles N. Pope, US Library of Congress. All rights reserved.