In Lamp of God the great Kabbalist Abraham Abulafia reveals the foundations of his prophetic system: a path of inner transformation through the meditative use of Hebrew letters and Divine Names. Beginning with an esoteric interpretation of the Priestly Blessing, Abulafia shows that spiritual illumination arises from an exact knowledge of the Names - how they are formed, how they function, and how they guide the soul toward prophecy. Drawing on the Book of Formation and rooted in the idea that "formation cannot exist without the combination of letters", this work offers readers a direct path into the living core of kabbalistic practice. Within its pages, Abulafia also lays down the theoretical principles behind the creation of the Golem, revealing how letter combinations are not only tools of spiritual ascent, but also of sacred formation.