You cannot descend twice in the same river, you cannot touch twice a mortal substance in the same state, but because of the impetuosity and speed of change it is dispersed and is collected, comes and goes, Panta Rei.. Thus the depth of the waters, the waves and the reflection remind me of the inner life. The mind is as deep as a lake, the waves on the surface represent the activities of the conscious mind while the entire depth of the lake is silent, and that is the unconscious mind, which is not used by the wave. But if the wave could penetrate deeper and incorporate quieter levels of water, the wave could become as powerful as the ocean.