Whenever you can, observe a tree, preferably from under its shade. Trees live to be 100's of years old! They are slow, steady, powerful creatures that live and breathe much like you and I. We live symbiotic lives with trees even though many humans abuse them. Breathe in the filtered oxygen that they produce and learn about that process in school, it's fascinating. And when you observe that tree, think about the wisdom and the cycles of life that it has seen! Trees are beautiful and they nourish life on earth. Harvest from them, but do it wisely, and respect them.