Nature is the great teacher, the book of life to be read and understood. That's why it is important not just to protect the natural world, but to guide it to the highest level of perfection. Our task as spiritual people is to foster an intimate bond between the world of nature--rivers, mountains, oceans, animals, forests--and our own felt nature. When one is thriving, the other will find needed support.
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.