Umwelt

Umwelt: this word deserves to be in more common use. It means "the world as it is experienced by a particular organism".

It comes from zoology, specifically ethology, I found it in this book on dog behaviour. Umwelt has the sense that a dog's, or any organism's, experience of the world is bounded by its range of perception. This range of perception forms a bubble the animal lives within. This perceptual bubble in turn limits (and distorts) the range of emotion and action the organism is capable of.

Human experience is equally circumscribed by perceptual bubbles (except that the more interesting perceptual bubbles are cognitive, or maybe maybe linguistic, rather than sensory). We need a word for those bubbles. Let umwelt be that word.

Let umwelt takes its rightful place in the English lexicon, alongside gestalt, zeitgeist, schadenfreude and cousin weltanschauung.