Anima and impermanence.

We make a lot of assumptions. Of the Sun continuing to rise. Of waking up to something familiar. Of things we take for granted to run as they always have, largely unchanged.

This is why it is so disturbing when we hear all-too-human whispers in the wind, trees move on their own without a breeze, the hills rise and fall and breathe or our house begins to make its own decisions. It upsets that order. It feels like reality has turned against us. It is nature acting unnaturally. It is our environments behaving unpredictably—or hell, simply behaving at all.

See also:
Liminal Spaces, Timeslips and Matrix Glitches in Fiction
Part I