Long before nano entered the vernacular as an abbreviation for nanotechnology, famed Kabbalah scholar and teacher Rav Berg was speaking and writing in spiritual terms about this scientific concept, which in the simplest terms means less is more rather than the bigger, the better. That less physicality can produce more power is a relatively recent discovery by scientists, but it is something that kabbalists have known for thousands of years. In this exciting book now available to Spanish-speaking readers, Berg examines this idea in depth. Blending science and spirituality, he argues...