The Big Bang was an individuation explosion, an entropic explosion of individual, subjective psyches from a collective, objective psyche. The Collective Psyche is God. As for us, we are all little devils that have split from God (yet long to return, which is why we all aspire to perfection).
God is fusion, and the Devil is fission. The Devil is the False God, but he has a fatal weakness - he wants to be the True God, and that means that he has to fuse all of his pieces, thus reassembling the One True God.
Osiris (God, the force of unity, the zero-entropy deity) was rent into pieces by Set, his brother (the Devil, the force of disunity, the entropic force) and then reassembled by Isis (Osiris' consort, the force of healing, the force of negentropy).