[7] It should be remarked that artistic perception, when coupled with a quiet introspective nature, forms the best foundation for the development of occult faculties. It pierces through the superficial aspect of things and in so doing touches their secrets. A further point of importance is that which is called in occult science "orientation in the higher worlds." This point is attained when one realizes with complete consciousness that feelings and thoughts are veritable realities, just as much as are tables and chairs in the world of the physical senses. Feelings and thoughts act upon each other in the astral-world and in the thought (or mental) world, just as objects of sense act upon each other in the physical world. As long as anyone is not truly permeated with this realization, he will not believe that an evil thought projected from his mind may have as devastating an effect upon other thought forms as that wrought upon physical objects by a bullet shot at random. Such a one will perhaps never allow himself to perform a physically visible action which he considers to be wrong, yet he will not shrink from harboring evil thoughts or feelings, for these do not appear to him to be dangerous to the rest of the world. Nevertheless we can advance in occult science only when we guard our thoughts and feelings in just the same way as a man would guard the steps he takes in the physical world. If anyone sees a wall before him he does not attempt to dash right through it, but directs his course alongside; in other words, he guides himself by the laws of the physical world.