Because the first one is usual, and the other one is wonderful. It's quite exceptional there are people who would get might if they see a few twigs in certain position, and there are people entirely indifferent to twigs. It's hard to explain why I myself, just at the moment, when looking through the window and seeing some twigs I am so much impressed and I feel great beauty. It's rather to ask why they have forgotten it. My awe is obvious, the way the Existence is obvious, as it is.
People are of different levels.
The first part we call Man, while the other part we call God. Particles are there because they are, and since they are, they stick to each other. This sticking is quite ordinary - since they are. That's the explanation of people's indifference. The point that particles are there in general, it's higher level.