The general function of dreams is to try to restore our psychological balance by producing dream material that re-establishes, in a subtle way, the total psychic equilibrium. This is what I call. the complementary (or compensatory) role of-dreams in our psychic make-up. It ex-plains why -people who have unrealistic ideas or too high an opinion of themselves, or who make grandiose plans out of proportion to their real capacities, have dreams of flying or falling. The dream compensates for the deficiencies of their personalities, and at the same time it warns them of the dangers in their present course. If the warnings of the dream are dis-regarded, real accidents may take their place. The victim may fall downstairs or may have a motor accident.
— Carl Gustav Jung
Compensation is not a comfort mechanism. Jung's formulation here is precise and carries a edge that the word "balance" can obscure: the dream does not soothe the ego, it opposes it. When the waking personality has inflated — grown grandiose, detached from its actual weight in the world — the dream produces falling, because falling is what is actually happening beneath the theater of ascent. The image is diagnostic, not punitive.
What makes this worth sitting with is the second move: if the dream's correction is ignored, the body inherits the task. A motor accident is not metaphor at that point — it is the psyche's argument relocated to flesh and asphalt, made undeniable by pain. The unconscious, in Jung's reading, is not patient in the sentimental sense. It is patient the way physics is patient: it will have its correction, and the longer the ego delays, the less symbolic the medium becomes.
Flying in a dream, then, is not always aspiration. It may be the soul's mimicry of exactly the inflation that brought the dreamer to that image — the unconscious holding up a mirror and asking how long the sleeper plans to stay airborne. The answer is already in the dream. The question is whether the dreamer wakes willing to land.
Carl Gustav Jung·Man and His Symbols·1964