The question is, can investigation in this direction accomplish anything? If so, we must at least not entertain or present any unreasonable demands. Such an unreasonable demand would be, for instance, to expect science to explain the concrete forms which life would take in a transcendental world. No man ever has or ever will make such observations. It is even questionable whether such knowledge would be useful or beneficial to us if obtained. We have enough to occupy us in our daily cares and earthly tasks. A complete knowledge of life in a future existence would probably disturb and distract us to such a degree that we would lose interest for our present evolution in this existence. It may be sufficient for us to know whether there be another life, and if so, whether our dealings and actions in the present life are of any importance for that life. It would, no doubt, suffice if we could acquire a knowledge with regard to that life corresponding to what we know about those distant worlds in space which we discern with our bodily eyes and which we further investigate with our astronomical resources. The following conditions must be fulfilled in order to make the cases similar: First of all, such a transcendental world must exist, and emit rays of light. Further, we must be equipped with some special organ, a spiritual eye, which we could direct towards it and by which we could make our investigations here on earth. Do we possess such a spiritual eye? We answer that our conscience, our religious intuition and the eternal and invariable laws of thinking are just such organs. That an ideal world exists, radiating a light of its own, we are able to conclude from perceptions received through our conscience and our religious intuition.