And who lives in what vacuum?
The facile reply would be moi, but it would be incorrect.
The mind can live in a different world to the body - if one is lucky. Living surrounded by alcoholics is not a wonderful experience unless you happen to be one too; spending one's days discussing football and ex-wives is no more rewarding, and neither would a permanent diet of plumber, electrician or photographer talk be very healthy for too long, though the first couple of options might be more useful to anyone in the long run.
Fortunately, I went to boarding school, which I detested, but it did teach me early the value and personal technique of spiritual levitation and rising above the horrors of the quotidian.
And salvation lies not in movement across continents and in crowds; you always end up meeting the same guy in the bathroom mirror.