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 persuasively that space is shrinking and will continue to do so until there is nothing between humans and the world around them. The result, he says, is that humankind can truly achieve its destiny by embracing the life- and world-changing notion that "we are all one" and, by extension, "love thy neighbor as thyself."