For me, there seems to be a bidirectional relationship between prana on one side and creative sensory expressions of mind such as thoughts, emotions, images on the other side of the coin.
They appear to be intertwined, so as that a thought will trigger associated emotionally charged prana, or, a flow of prana will trigger a conceptual thought.
During the dream, when non-lucid, flows of prana create the dreamscape and moods of the non-lucid dream.
If lucid, there is a certain emotional distance to - not an immediate fusion with - the prana and its creative expressions. One can observe the creative expressions of the mind without fusioning immediately with them.
During the day, when non-lucid, unnoticed flows of prana can cause moods and daydreams, these also often unnoticed.
When lucid and relaxed, one has the opportunity to practice Vipashyana - or Trekcho -with the flows of prana and its correlates. One has the opportunity to realize that one is not identical with one‘s moods or thoughts, which is a major step towards liberation.
Bob Marley comes to mind „Emancipate yourself from mental slavery, none other than ourselves can free our mind“.