Normal human consciousness is very different from what we have now. Normally we're very hip and mellow and happy.
The dimly remembered golden age was just normal life, then there was this accident (maybe it was the still-hypothetical Younger Dryas Comet Impact, maybe not.) There was a global disaster (flood, the oldest human societies have actual oral traditions handed down from the survivors.) In the aftermath of that we fell into a kind of Lord of the Flies scenario and developed agriculture and cities (both pathological aspect of our sundering from Nature/Reality.)
All of what we think of as human history is the story of accident victims recovering from a terrible disaster, rising up out of a kind of nightmare or coma, and returning to normal healthy existence, healing the trauma.
> Under the present brutal and primitive conditions on this planet every person you meet should be regarded as one of the walking wounded. We have never seen a man or woman not slightly deranged by either anxiety or grief. We have never seen a totally sane human being.
~Robert Anton Wilson