"The Souls of the World of Chaos" is a most famous essay of Rav Kook, a modern mystic. First published in 1913, it continues to intrigue and inspire spiritual seekers in our day. Not content with inspirational reading, Bezalel Naor has undertaken the formidable task of unpacking the Kabbalistic structures that inform the essay. Cognoscenti will appreciate the copious endnotes. In the Introduction, we are provided with the historical backdrop to the essay and insight into the Kulturkampf that rocks Israeli society to this day.