Nowhere and never has man controlled matter without closely observing its behavior and paying heed to its laws, and only to the extent that he did so could be control it. The same is true of that objective spirit which today we call the unconscious: it is refractory like matter, mysterious and elusive, and obeys laws woich are so non-nonhuman or suprahuman that they seem to us like a crimen laesae majestatis humanae. If a man puts his hand to the opus, he repeats, as the alchemists say, God's work of creation. The struggle with the unformed, with the chaos of Tiamat, is in truth a primordial experience.