Among the great mystics of the Reformation era none are so difficult to understand as Jacob Boehme, the Cobbler of Gorlitz. Yet a few can offer so much to the reader who is prepared to take the trouble to understand his message. It is in the Signatura Rerum that Boehme expounds his cosmology lies at the heart of his whole mystical approach and experience, the Signatura, although by no means his longest book, is the starting place from which to gain an understanding of his ideas. Here, for example, can be found the great passages expounding the seven fundamental laws or energies or qualities, like the seven-fold colour -