Reality is not digital, an on-off state, but analog. Something gradual. In other words, reality is a quality that things possess in the same way that they possess, say, weight. Some people are more real than others, for example. It has been estimated that there are only about five hundred real people on any given planet, which is why they keep unexpectedly running into one another all the time.
Terry PratchettI get it,' said the prisoner. 'Good Cop, Bad Cop, eh?' If you like.' said Vimes. 'But we're a bit short staffed here, so if I give you a cigarette would you mind kicking yourself in the teeth?
Terry PratchettDeath: Human beings make life so interesting. Do you know, that in a universe so full of wonders, they have managed to invent boredom.
Terry PratchettThe short conversation that follows eventually led to a tree religion. Its tenet of faith was this: a tree that was a good tree and led a clean decent and upstanding life could be assured of a future life after death. If it was very good indeed it would eventually be reincarnated as five thousand rolls of lavatory paper.
Terry Pratchett