When researchers ask people what they dream, falling comes back at or near the top of every list. The typical dreams questionnaires used in sleep research since the mid twentieth century find a large majority of respondents reporting at least one falling dream, across ages and cultures, which makes the image less a private symbol than a shared human experience asking for explanation.
Freud discussed falling among the typical dreams in The Interpretation of Dreams, connecting it, like flying, to the body's memory of childhood movement games, being swung, tossed and caught, an explanation that grounds the dream in sensation rather than prophecy. Modern sleep science adds the hypnic jerk, the involuntary start at sleep onset that is often accompanied by a momentary sense of falling, which accounts for many brief falling dreams without any interpretation at all.
The folk stratum contributed the famous warning that a dreamer who hits the ground will die. No evidence supports it, and the many dreamers who have landed and woken disprove it nightly; it circulates anyway, an example of how confidently dream folklore outlives contradiction. The interpretive traditions, for their part, read falling toward lost footing in waking life, an anxiety reading that the dream's raw feeling makes easy to credit, though it remains a reading and not a fact.