“Epistemology, rationalism, empiricism: the vocabulary which introduces this work would seem to presage a dry academic text and yet that could not be further from an accurate description of this truly remarkable book. By examining the teaching and work of the contemporary Sufi master, Shaykh Abdalqadir as-Sufi, in conjunction with the intellectual history of the last two millennia, the book weds together the traditional understanding of existence propounded by the ancient world with the most cutting edge perceptions of present day scientific discourse. By doing this it shows how the...