I may sound like an avocado eating, nature loving, hippie millennial with my answer but this is my genuine answer. My favorite thing about Earth would have to be experienced. I can explain it but it is best if you go out and see for yourself. Take some time to stand outside in the woods, on a beach. A place with minimal or no mechanical noise. A clearing in the woods , stand or lay there. Absorb the sights, absorb the sounds, truly feel the ground beneath you. Clear your mind and breathe it in. These places away from the hustle and bustle of society exist and are an oasis away from routine life andyet contain pure unsullied life. The Earth as it is. I love that "It" is happening all over the world , you just have to go out there and experience it.