15. The Theory of Categories

Imagine yourself confronting the external reality and contemplating the world from a point of view which depends only on yourself. You contemplate, for example two men, one large and one small. You imagine something about them, a concept, which would never be conceived [about them] then unless you had met them both, the small and the large man. It is all one what you think about them, but the concept would never have been formed unless you had encountered them. You can find nothing in the primary causes, which could lead to the concept. It has emerged through the pure constellation, through the reference of things to each other. But now this concept, which has come out of the NICHTS, becomes a factor that continues active in you. The NICHTS becomes accordingly a positively real factor in the phenomena of the world, and you can never lay hold of this world phenomenon unless you have seized the NICHTS in this real significance. You would even understand the concept of Nirvana better if you had a clear concept of the NICHTS.