Nature is not primarily functional. It is primarily beautiful. Stop for a moment and let that sink in. We're so used to evaluating everything (and everyone) by their usefulness (and how successful they are, i must add) that this thought will take a minute or two to begin to dawn on us.
And yes, it has dawned on me. I've come to realise that this is why we can take a snapshot of an elderly woman idling under a shady tree and find it entirely captivating and beautiful, that this is why my grandmother's wrinkled old limp hands amaze me, that this is why we spend so much time in awe walking down art galleries that serve no other purpose. Beauty calms us, assures us, and tells us that all will be well. And the most important thing? We were all made to be beautiful.