15. Spiritual Science, Natural Science and Technology

And if someone objects on the other hand: Yes, mathematical geometry only presents something to our consciousness that we apply when we follow the reality of the external world – then I say: Yes, that is so, but if we constructively present this to ourselves, then we arrive at the conviction that it is a mere formality. If you are aware of what has been characterized, you know that it is a reality. And if someone says that this is perhaps self-suggestion, then I say: everything that gives us the possibility of saying that something is real is only a result of experience. And when some people object that someone could be mistaken, that someone could, for example, have the vivid thought of citric acid when drinking something and if they are sensitive, they could even have the taste of lemon – I say: that is possible. But just as in ordinary life one can distinguish the mere thought of heat from the heat that comes from actually touching a hot iron, so too, through inner experience, if one has the seeing consciousness, one can distinguish between what is mere imagination, what is mere suggestion, and what is reality, because the grasping of all reality is an inner experience. And it is necessary to follow things through to the end, not to stop somewhere. Anyone who stops short of where the path should actually lead may succumb to suggestion. I therefore say: It is indeed possible, if someone is sensitive and gives themselves over to autosuggestion, to say: I have the thought of lemonade, I even feel the taste – but the thought of lemonade will not quench one's thirst. What matters is that one passes from the sensation of taste to quenching one's thirst, that one follows the path consistently. The experience must be pursued consistently, then the fact that one designates something as reality in the spiritual sense is also entirely the result of the experience. The designation of a sensual reality or reality cannot be theoretically established, but is a result of experience.