Living with nature - What is it about?

I wish to obtain/reveal insights into the world of nature which surrounds us, contains us, is in us, is us! Not to describe or chronicle it, not to explain it, but to get inside it- understand- no! - KNOW how we fit in.
"The world of nature is both around the fish and the sea within it - it does not know the difference - it is all one."
Somehow the only difference between us and the animals is our ability to cognise our seperateness: - this very seperateness we have taken to be superiority - but deeper down we are the same animals with the same animal needs and desires - dependant on the plants for our life and they on the water for theirs - so how much are we actually seperate or independant from them?
This is the territory we explore and roam in - man in nature - nature in man.