I started re-reading Eric Hoffer’s on train journey down to London. It’s the journal he kept from 1958 - 1959.

What’s the one thing I ought to do? Hoffer says men feel lonely when they’re not doing the one thing they ought to do. It seems to me he is suggesting if we’re not serving our purpose and living to our full capacity or potential then we can’t feel vested in the world and therefore can’t have the feeling of being at peace with one’s self.