If you're being serious, it's more that within time you begin to realize both your fragility and lack of power over yourself and nature. And on top of that you realize the narrow perspectives you held as a child that came for your culture, like owning things or believing you have control over them, are far less real than we think. Here she points out, look, you can say you own something, but that's a cultural concept. Long after you are dead and gone that land will be there, you will not. Long after you said you can control nature, it will consume you in the grave. You are a part of it, and for a time you can exert some power over it, but in the long term, we are just waiting to be overrun by it. What may appear inferior, could, over a long time horizon, prove superior. Trees for example have survived 100's of millions of years, and humans are a mere 10's of thousands. We are young, ambitious and naive and we are cutting them down -- the thing that provides the very air we breath.

Its a broader perspective that come with age I'm guessing.