Exercise 2-20 disappeared from the site, so I guess 21 and onward will do.
Dream exercise: Write the recurring dreams of your four most significant characters.
Jax sleeps, and he dreams of falling. He never gets used to it. He falls through the clouds, hurtling towards the ground so far below him. He screams for a while, terrified but unable to wake up. Birds and clouds flash past him, and eventually he stops screaming. He keeps falling, but he never reaches the ground. Eventually he gets bored of falling, and he realizes the absurdity of the situation. Then he wakes up.
Jonathan Phrase sleeps, and he dreams of travelling. He travels, but his every step is harried by an enemy he can't fight: fate. Horses trip and break legs. Cars run out of gas in the middle of nowhere. Trains arrive at the wrong station. Whenever he makes progress, he's is sent back to his starting point. He never knows his destination.
Rook sleeps, and he dreams of ghosts. Ghosts of friends and enemies. Some slain by his hand, some by others. He misses them all, even those who would kill him if they had the chance, and he can't explain why. He often wakes up with an arm outstretched as if reaching for something.
Doctor Blitzmann sleeps, but dreams are inefficient, so he disposed of them years ago. Don't ask.