A Key to the Mysteries and a Synthesis of Philosophy. Partial Contents: Thesis; Hermetic proverbs; Problems to resolve; Meditations; Spirit of the Sphinx; A premise and a promise; Problem of the ages; Wisdom of the ancient Egyptians; Basic truths from Hermes; The riddle; Supreme cause is mind; Four dimensions; Seven directions; Three-fold absolute; Life, love, intelligence; Two planes; The atom-man-sun; Evolution of the ego; Dual soul; Key to numbers; Paradoxes reconciled; Great symbols of philosophy.