First you must understand what is not nature itself! What is not nature? Is nature how it was before, how it's now, or how it will be? Is nature being in peace? A lot people say I am in nature. I am in peace. The question is are you free? Relationship, peace, love, joy, and all of it comes through freedom. Now ask this question yourself. Are you free? Are you free from thought, are you free from time, are you free from the mind which is conditioned by other people, are you free from ambition, are you free from following any type of religious system? You are saying "why I am feeling close to nature", Do you feel know that you are close to nature? To be close to nature is our Central being. To liberate the self is (not being close to nature), is to be in nature.