The need is for the connection to nature within ourselves; only then can we understand how to act toward nature outside ourselves. Along with the obvious crimes our culture is committing against the natural world, we would be wise to remember that the main crimes are the crimes against our inner nature. From these inner crimes all the outer evil arises. This is the teaching of wisdom.
Notice that the more you become a connoisseur of gratitude, the less you are the victim of resentment, depression, and despair. Gratitude will act as an elixir that will gradually dissolve the hard shell of your ego -- your need to possess and control -- and transform you into a generous being. The sense of gratitude produces true spiritual alchemy, makes us magnanimous -- large-souled.