'Discworld' is taking something that you know is ridiculous and treating it as if it is serious, to see if something interesting happens when you do so.

First Thoughts are the everyday thoughts. Everyone has those. Second Thoughts are the thoughts you think about the way you think. People who enjoy thinking have those. Third Thoughts are thoughts that watch the world and think all by themselves. They’re rare, and often troublesome. Listening to them is part of witchcraft.

They suffered from the terrible delusion that something could be done. They seemed prepared to make the world the way they wanted it or die in the attempt, and the trouble with dying in the attempt was that you died in the attempt.

ASTONISHING, said Death. REALLY ASTONISHING. LET ME PUT FORWARD ANOTHER SUGGESTION: THAT YOU ARE NOTHING MORE THAN A LUCKY SPECIES OF APE THAT IS TRYING TO UNDERSTAND THE COMPLEXITIES OF CREATION VIA A LANGUAGE THAT EVOLVED IN ORDER TO TELL ONE ANOTHER WHERE THE RIPE FRUIT WAS.

Humans! They lived in a world where the grass continued to be green and the sun rose every day and flowers regularly turned into fruit, and what impressed them? Weeping statues. And wine made out of water! A mere quantum-mechanistic tunnel effect, that'd happen anyway if you were prepared to wait zillions of years. As if the turning of sunlight into wine, by means of vines and grapes and time and enzymes, wasn't a thousand times more impressive and happened all the time.

The only really sane person in there is Igor, and possibly the turnip. And I'm not sure about the turnip.

The 'New Testament', now, I quite liked. Jesus had a lot of good things to say, and as for his father, he must have been highly thought of by the community to work with wood - a material that couldn't have been widely available in Palestine.