Why do people love nature?

Question

I wonder why we feel happy and comfortable when seeing the view of trees, green plants and flowers. Why do we admire sea, waves, fishes inside pure water and sun set? why do we love seeing the view of sky, moon and stars? Why people love nature even it is not real like a Picture on a computer? To be more clear, People love seeing sea but the don't feel the same when they see a cup of water although they both are water. Is it pure psychological reason? or There are some other biological reasons or chemistry of the brain?

Answer 1