" With knowledge of the diagrams you will be able to interpret many of the new feelings, sensations, ideas that will come to your mind, and transfer this interpretation to the ordinary mind. Without diagrams you will not be able to do it. They are the intermediate language which will connect the language of the higher emotional centre with our ordinary centres. At the same time this language is a kind of ladder by which we can climb from ordinary thinking to the thinking of higher emotional centre. "

― P.D. Ouspensky , The Fourth Way