Y'know sometimes, when I'm looking at trees, it makes me think slightly deep thoughts, like:

Sometimes it seems like a paradox how different and, at the same time, exactly similar, many things are. How we see a pattern, yet the individual elements in that pattern each seem unique. So is it a true pattern? I know humans look for patterns, why do we have that facility? Maybe that's not so deep for you.

We recognise a birch leaf. Look closer. See this one is longer, this slightly bigger than that. They grow along the twig according to their rules. Away from gravity, towards the light, at an angle to the branch. The branch grows according to it's rules. It is not symmetrical. The trunk is not symmetrical, but we see a pattern of rings in a slice of the trunk. Why does this confuse me? Why does this fascinate me?