What Did Ancient Humans Think Dreams Were?

Every night you leave your body, walk through places that don't exist, and talk to people who've been dead for years — then you wake up and call it "nothing." For almost all of human history, people were certain those journeys were real. So what did ancient humans think dreams actually were? Before anyone could explain sleep, dreaming posed an impossible question: where do you go every night? In this video we step inside that mystery — the near-universal belief that a part of you detaches and travels to a second world, the ancient Greek and Egyptian temples built specifically for dreaming, and what modern science says dreams really are: REM sleep, a brain running a fully immersive simulation, and the theory that dreaming evolved as threat rehearsal. A journey through human evolution, anthropology, and the strange possibility that we may be the first humans in history to decide the second world we visit every night isn't a place at all. Sleep well. Try to remember where you go. ⏱️ WHAT THIS VIDEO COVERS – Where you went last night – The second world everyone used to believe in – Temples built for dreaming – What dreams actually are (REM & the brain) – Dreams as ancient threat rehearsal – Why we're the first to stop believing 📚 SOURCES & FURTHER READING Tylor, E. B. (1871). Primitive Culture. (The classic — and dated — dream-origin-of-the-soul hypothesis.) Aserinsky, E. & Kleitman, N. (1953). Discovery of REM sleep. Revonsuo, A. (2000). The Threat Simulation Theory of dreaming. Behavioral and Brain Sciences. (A debated hypothesis.) On dream incubation at the temples of Asclepius (ancient Greece) and Egyptian sleep temples. ▶️ MORE FROM THE ANCIENT HUMANS SERIES Why You Feel Like You're Being Watched 👉 [paste link] Why You're Still Scared of the Dark 👉 [paste link] What Did the First Human to See Their Own Face Think? 👉 [paste link] Subscribe for new ancient humans stories every week 👉 [paste channel link] #AncientHumans #Dreams #WhyDoWeDream #HumanEvolution #ScienceOfDreams #REMSleep #Anthropology #Prehistoric #HumanOrigins #DreamMeaning