Although often the sefirot are enumerated as being ten, there are altogether eleven sefirot spoken of in Kabbalistic literature. This is because the sefirah of keter and da’at are actually one, representing differing dimensions of a single force. When keter, which is the super-conscious of the soul, manifests itself in consciousness, it transforms into the sefirah of da’at. In other words, keter and da’at are two sides of the same coin, a conscious side and a unconscious side. Usually when referring to the Ten Sefirot one will either count keter in which case one does not count da’at. Or visa-versa one counts da’at in which case one does not count keter. Therefore there are actually only Ten Sefirot but there are all together eleven names. Still, many times in various models, all eleven sefirot are used at once... read more>>>....
