holy Hierotheus on "the hidden mysteries of the Divinity" has been but recently discovered, and only a summary of it has as yet been made public. But it is of great interest and importance for our subject, because the author has no fear of being accused of Pantheism or any other heresy, but develops his particular form of Mysticism to its logical conclusions with unexampled boldness. He will show us better even than his pupil Dionysius whither the method of "analysis" really leads us. The system of Hierotheus is not exactly Pantheism, but Pan-Nihilism. Everything is an emanation from the Chaos of bare indetermination which he calls God, and everything will return thither. There are three periods of existence--(1) the present world, which is evil, and is characterised by motion; (2) the progressive union with Christ, who is all and in all--this is the period of rest; (3) the period of fusion of all things in the Absolute. The three Persons of the Trinity, he dares to say, will then be swallowed up, and even the devils are thrown into the same melting-pot. Consistently with mystical principles, these three world-periods are also phases in the development of individual souls. In the first stage the mind aspires towards its first principles; in the second it becomes Christ, the universal Mind; in the third its personality is wholly merged. The greater part of the book is taken up with the adventures of the Mind in climbing the ladder of perfection; it is a kind of theosophical romance, much more elaborate and fantastic than the "revelations" of mediæval mystics. The author professes to have himself enjoyed the ecstatic union more than once, and his method of preparing for it is that of the Quietists: "To me it seems right to speak without words, and understand without knowledge, that which is above words and knowledge; this I apprehend to be nothing but the mysterious silence and mystical quiet which destroys consciousness and dissolves forms. Seek, therefore, silently and mystically, that perfect and primitive union with the Arch-Good."