It might be fun to define dream 'cards' as needing certain things to be true in order to occur. For example:
If Blood Loss = Extreme & Dreamt of Exangination = Flase & Mood <10:
"I dreamt of drowning in a torrential river of blood flowing from my wounds"
Add mood state 'Dreamt of Exangination' (duration = mood*-1 days).

This would then potentially allow you to build dream chains fairly trivially:

If Undergrounder = False
"I dreamt of the stars, and they -looked at me"
Add 'Stars are watching' (duration = mood*-1 hours) -2 mood

If Stars are watching = True
"The Stars are EYES and they can seem ME see US"
Add 'Celestial Eyes' (duration = mood*-1 days) -5 mood

and so on...
It would be really interesting to allow dreams to trigger other events as this could be especially interesting for psionic pawns as their dreams/nightmares can become manifest in some way.

For example:

If Burn = True
"I'm burning its all burning..."
If flashstorm = true cast flashstorm and location (near caster ofc)
Add Nightmare Come True (duration x), wake
Else
"i'm burning its all burning..."
Add disturbed sleep

this would then allow for the emergant gameplay need to keep your psionic pawns both happy and if not drugged so they are happy or anaesthetised.

For tribal pawn / shamen maybe dream quests?