It is one thing to wonder at the intricacies of Nature - a spider catching a beetle, or the sky at night. It is quite another thing to wonder at its infinite complexity. And it is another thing again to enter into this wonder. The wonder is not in the trees, or the skyscrapers, or even in the infinite complexity of Nature - but in the end of it.
Never think "why" Nature is as it is. Never think "why" you eat, sleep, and breath. Wisdom says never stop thinking why you should never think "why".