Last night I had very vivid dreams.

In one of them I was sitting in a friend's house, in a new addition, hanging out for a long time, when my friend tells me that this used to be the patio in back of his house that he enclosed. I was genuinely shocked. Astonished. Surprised. I had not seen this coming (I know it makes no sense to be so emotionally attached to the integrity of a patio, but it is a dream.)

This is not the first time this has happened in a dream of mine, where a truth is revealed that is surprising, that I did not see coming.

Here's the question -- since I am not only the person viewing the dream, but I am also the author of the story -- how is it that I am so surprised? How does one part of myself keep the other part in the dark?