What does it feel like to be lonely? It feels like being hungry: like being hungry when everyone else around you is readying for a feast. It feels shameful and alarming, and over time these feelings radiate outwards, making the lonely person increasingly isolated, increasingly estranged. It hurts, in the way that feelings do, and it also has physical consequences that take place invisibly, inside the closed compartments of the body. It advances, is what I’m trying to say, cold as ice and clear as glass, enclosing and engulfing.
Olivia Laing, The Lonely City: Adventures in the Art of Being Alone