So Raiden is a sane, sane man who loves people which means, naturally, he's making camp in the deep forest south of Verens.

My question is how much would one character be allowed to alter a landscape over time? I would love to play with his hostile emotions warping the forest around his campsite and twisting it into despair woods until he either moves to another location or calms the hell down and stops emotionally abusing himself in an attempt to stave off his own humanity.

Is that allowed? To what extent is it allowed if so? Is the presence of a despair-ridden deep wood something NPCs would eventually notice?