The importance of Abraham's discovery lies not so much in its scientific or conceptual innovation, although for his time both were absolutely radical. Rather, the primary significance of his discovery lies in its social aspect...
In his book, The Tree of Life, the great 16th century Kabbalist Isaac Luria (the Ari), founder of Lurianic Kabbalah, today’s predominant school of Kabbalah, wrote, “Know, that before the emanations were emanated and the creatures created, an Upper, Simple Light had filled the whole of reality. And there was no vacant place, such as an empty air and a void, but everything was filled with that simple, boundless Light”...