What is inconceivable, even for layperson, is that when in doubt you should always gain altitude, not lose altitude.
I did some flying with a hood - no ability to see outside but I could see instruments. It was uncanny, and I got totally disoriented.
The only thing that saved me is that as a former sim jockey I was used to flying just on the instruments and I knew it was very unlikely that they went wrong just as I was flying blind. So I focussed on the instruments and ignored the feeling that the plane was literally flying on its side.
It is very unsettling.