III. The Law of the Astral Plane: Renunciation. The Law of the Devachanic Plane: Sacrifice

Above all, it is a matter of refining and purifying thinking. That is necessary in order that thinking may no longer depend on the external sense-perceptions that can be gained on the physical plane. Yet, not only thinking but also feeling and the will can become forces of knowledge. In ordinary life, they go on personal paths; sympathy and antipathy take their way in accord with the individual personality, yet they can become, forces of knowledge. This may sound unbelievable for modern science! One can believe it more easily of thinking, especially of the descriptive thinking directed to sense-observation, but how can people admit that feeling can become a source of knowledge when they see how one person feels so, and another feels so, about the same things?