The Three Principles of the Divine Essence was Boehme's second book and the one he recommended as an introduction to all his writings. The three principles - the fire world, the light world and the outer world - proceed from the Father, Son and Spirit, and are manifest in all things. "Thus now I have written, not from the instruction or knowledge received from men, nor from the learning or reading of books; but I have written out of my own book which...