The two principles at work were themselves abstract enough to have satisfied the most unimpassioned of philosophers.

They were simply a positive essence and a negative one, correlated to sunshine and shadow, but also correlated to male and female forces.

Through their mutual action were born the earth and the air and the water; from these, in turn, was begotten man.

The cosmical modus operandi was not creative nor evolutionary, but sexual.

The whole scheme suggests an attempt to wed abstract philosophy with primitive concrete mythology.
The same sexuality distinguishes the Japanese demonology.