Moving

Moving to a different place reveals the priorly invisible mental roots one had established in the prior place. The sadness from replacing those roots with another one.. wait, no, it's mental/emotional work,  why sadness? Because those roots linked to us, and it felt that we not only belonged to the former place but also that part of it belonged to us, that some of it was ours. Sadness is that pain from something taken away from our soul, something that felt like possession.
And the brain doesn't distinguish much between space, things and humans, they all get attached to us.
Moving also reveals the energy it takes to re-judge every single detail. Like revisiting an old place, every small details comes back to the surface because the brain doesn't distinguish between details, and they all get attached to us, for no good reason. There is an efficiency in not being sensitive to one's environment that I long for.