Be sure to know who you are, when you are commuting. Remember your name distinctly. It is perilous to be pressed up so close to other humans’ identities and waver, because you might lose yourself in the sea of people and, in a fit of sheer panic, grab someone else’s self to hold close to your chest. Do not drift; do not daydream at all. Packed tight like mackerels, everyone swinging this way and that a fraction of a second after the train turns slightly, it is easy to feel a sense of proletarian unity. Don’t. You might lose yourself.