“There are inner sufferings so subtle and so diffuse that we can’t tell whether they belong to the body or the soul, whether they’re an anxiety that comes from our feeling that life is futile or an indisposition originating in some organic abyss such as the stomach, liver or brain. How often my normal self-awareness becomes turbid with the stirred dregs of an anguished stagnation! How often it hurts me to exist, with a nausea so indefinite I’m not sure if it’s tedium or a warning that I’m about to vomit! How often…”