Even so I find it calming.
What do trees think about? "Think" is the wrong word of course. "Contemplate" would be better. So what do they "contemplate"? I think they contemplate water- how it falls, drips, percolates, slides, rises, drifts about them. Do they notice us? I suspect they do, but only as an aura impinging on their aura- as something ratcheted-up and fast-moving and quickly gone.