This early work on spirituality is both expensive and hard to find in its first edition. It outlines ideas of karma, mentalism, metaphysics and much more. This is a fascinating work and highly recommended for anyone interested in the eastern mystical traditions. This book was written in fulfilment of the promise made in The Hidden Teaching Beyond Yoga which, indeed, was really an attempt to clear an intellectual pathway for its abstruse and abstract tenets.The Indian villager who has hoarded his money, coins, gold or jewels (for he has not yet acquired the banking or investment habit) proceeds to bury his most valuable treasure in the deepest ground, to be dug up only by the hardest labour. I too, have placed my best-regarded truths deep in the work which has been offered last to an audience drawn from the four corners of the civilized world. Consequently some plain hints were scattered here and there in the first volume that until the reader had the whole teaching put into his hands, he could not judge it aright and was indeed liable to form misconceptions.