Nature is always arising – new, new, new.
Pain, for example – before 5 minutes pain and until now still pain, that is not nature; that is not reality, it is a concept.
Actually, the nature of pain is always changing. We need to think this way; only then we become interested – ah, new mind comes, aware; new mind and new object. Thinking is nature, thinking is the object; so, you don’t need to complain.
Now you resist this thinking; why this thinking comes back again and again, right?