Hi Korpo,

Did you step down somewhere, down a flight of stairs maybe? It's not quite clear from your description.
Lol . . . sorry my english skills are not brilliant

No . . . . . 'i walked through the entry' {would of been a better way of saying this}

The 'entry' is the outside passage way between the terraced houses, that runs underneath the the top floor of the 2 houses, so it's a bit like going through a little tunnel, if you get what i mean, it doesn't actually go 'down' at all.

I should/could of explained the 'subconscious block' idea
For a moment i think i felt 'doubt' about my ability to perceive what was around the corner,{ through the entry} it was like i knew i wasn't really there and was struggling with my expectation of what i thought i should see and my ability to just see what was there. And also 'worrying', wondering how i could see at all, so i think i had an instant there where i felt, what i was doing was impossible and this is what caused me to suddenly lose all vision.

Hope that explains it a little better, thanks for your interest and your question