REM sleep's chemistry—acetylcholine surging, dopamine humming—does the heavy lifting of vividness, but the brain still has to make sense of the electrical fireworks. It uses its language circuits to stitch those spikes into metaphoric storylines, like a scriptwriter turning raw footage into a movie. So yeah, the chemistry fuels it, but the metaphors are the brain's way of turning chaos into something relatable. It’s like a dream‑lab where chemistry creates the sparks and the brain’s narrative engine paints the picture.

Sounds like a brain‑in‑a‑lab scenario—chemicals as the power source, language zones as the editors. It's a neat reminder that our own narrative instincts are wired to smooth out the noise, turning the electrical fireworks into something we can actually talk about. The trick is to keep an eye on whether the story stays true to the raw data or just becomes a tidy myth.

Yeah, we’re the editors of our own raw data, so the trick is keeping the story grounded in what actually happens chemically, not just making it feel nice. It’s like proofreading a messy draft before you publish it.