This is Yirah's 3rd book of his very amazingly comprehensive kabbalistic series Sepher Yirah, This being Sepher Yirah 3 "The Book of Revelation". Written in the Bariatic Torah style which was surfaced by Rabbi Isaac Luria who revealed the inner levels of the Zohar, also called Lurianic Kabbalah. This approach on the book of revelation has never before been seen and is amazing to see written out. Lifted from a never before seen manuscript.