>>938497328
As a Schizophrenic for 20 years, who also had suicidal depression and anxiety for 10 years, I am aware of how the brain interprets every single piece of data it reads from the world and the people in ways that correspond to its overall neurological design.

I can be in a room of people and be paranoid that they are all talking about me, and everything they say can link to what I am thinking when psychotic. That same room of people having similar conversations can mean nothing at all when I am feeling normal. It is just background noise.

More than chemicals, it is neurological pathway formation and pattern repetition that decides if life is miserable or happy.

So to answer your question, yes, chemicals can alter the world as an experience, but mostly it is neuronal connections firing in sequences that match the usual baseline clarity of one's lifetime as a witness to the world, which makes for a 'Good' world.

A bad world is most commonly down to new connections which are not yet integrated, and the living of those scenarios until the brain adapts and emotion levels balance out makes those 'bad world' situations become normal, and one can find a new kind of peace.