O'Regan's Gnostic Apocalypse is exhaustively and densely argued … O'Regan's significant contribution to scholarship—beyond the general need for books on thinkers such as Boehme—comes from his enticing suggestion that it is with such important thinkers as Hegel and Blake that Boehme's legacy lies and that, similarly, the sources of a thinker such as Hegel are to be found not only in the previous tradition of 'German idealism' represented by Kant among others but also in more marginal and theological figures as Boehme." — The Journal of Religion"His scholarship is meticulous and this in itself guarantees the long term impact of the work. O'Regan has done a first-rate job in explaining Boehme, locating him within the complex strands of esoteric mystical speculation that streamed into the seventeenth century, and demonstrating the uniqueness of Boehme's own synthesis as a key transmitter of Gnostic structures into religious and philosophical movements of the modern world." — David Walsh, author of The Third Millennium: Reflections on Faith and Reason