“Y’sul spent a large part of the journey complaining about his hangover.
‘You claim to have been around in your present form for ten billion years and you still haven’t developed a decent hangover cure?’ Hatherence had asked, incredulous.
‘Suffering is regarded as part of the process, as is the mentioning of it. As is, one might add, the sympathy one receives from one’s companions.’
The colonel had looked sceptical. ‘I thought you felt no pain?’
‘Mere physical pain, no. Ours is the psychic pain of realising that the world is not really as splendid as it seemed the evening before, and that one may have made something of a fool of oneself.'”
Iain M. Banks, “The Algebraist”