Do not, therefore, try to measure your new and higher perceptions by the old standard. Only he who has already gained some certainty in his observation of inner experiences ought to speak about them with the idea of thereby stimulating his fellow-beings. As a supplementary exercise the following may be set forth. Direct your observation in the same way upon a fellow-being to whom the fulfilment of some wish, the gratification of some desire has just been granted. If the same rules and precautions are adopted as in the previous instance, you will once more attain to spiritual perception. You will distinguish a flame-like appearance which is yellow in the centre and greenish at the edges. By such observations of one's fellow-creatures one may easily be led into a moral fault--one may become uncharitable. All conceivable means must be taken to fight against this tendency. Anyone exercising such powers of observation should have risen to the level on which one is absolutely convinced that thoughts are actual things. He may then no longer allow himself to admit thoughts incompatible with the highest reverence for the dignity of human life and of human liberty. Not for one moment must he entertain the idea of regarding a human being as a mere object for observation. It must be the aim of self-education to see that the faculties for a psychic observation of human nature go hand in hand with a full recognition of the rights of each individual. That which dwells in each human being must be regarded as something holy, and to be held inviolate by us even in our thoughts and feelings. We must be possessed by a feeling of reverential awe for all that is human.