not sure what you mean. i have seen wonderful things, only to not understand how to use my camera, or its broken, or stolen, or missing, or i thought i shot it but didn't, or i shot great pictures but had nothing in the camera in the morning.
doesn't happen a lot, more often now because i haven't been able to shoot things in real life.
I have had dreams that I am looking at some really cool art that in my dream someone else did. Then I wake up and realize that because it only existed in my dream that someone else did it, that I can do it and it is really mine. But I never have accomplished such an art, but I do remember vaguely some dream art that I would like to do yet.
Dreaming, dream-states (including waken or daytime dreaming) is part of my own creative nature; its involvement is sometimes conscious and at other times working in the background out of sight. When it is 'out-of-sight' it still leaves a residue, clues and evidence, that it is 'faithfully' energized and cooperative with my creative motivations - sometimes it even strongly suggests that my direction or medium is less than adequate for the effort in progress.
I don't have dreams of my art, but my mind apparently keeps going over design challenges, especially if I'm working on a custom design for someone. I will literally wake up in the middle of the night with an idea. Then I HAVE TO get up and right it down, otherwise I will forget it by morning. It's disruptive to my rest, but I can't seem to stop doing this. I wish my brain had an "off" switch for when I go to sleep. (not off completely... I'd like it to keep my heart and lungs, etc, functioning, but I wish my thoughts would go to sleep when I do) :-)
In some ways, like wondering through a dream, automatism can meander and unfold into visual journeys - seemingly to no end...But obviously with much purpose. Viewed by an audience, one has to wonder: Has the next viewer sailed further than the first? How dreamy are our creative works when viewed like one views dreams?