Where do dreams fit in to the Model?

This may be a strange question, but I was thinking of it the other day and am now very curious about what you think.

Where do dreams fit into the Model? (By dreams I mean the things that happen at night while we sleep. Not dreams as in goals or aspirations.)

I do believe that dreams are an expression of our subconscious. They tell a story and they mean *something* though it’s really hard to tell what they actually mean.

Would dreams be a Circumstance, Thought, Feelings, Action, or Result? I kind of feel like they could fit anywhere in those categories.