To answer your questions, I don't know how I know where I am, but I just do. It was integrated into my thinking in the dream, but I don't remember seeing anything that would tip me off to being in a specific place, such as a label on a phone or a road sign or anything like that. As much detail as I remember about this dream, I think I would remember something along those lines. There was no wedding invitation, but I just know I'm there to conduct a wedding.

In my mind, color played a much more prominent role in this dream than I've ever noticed before, especially the predominance of olive drab and brown at the beginning and that flash of bright brilliant red at the end.

Placewise, I was just wondering if in your dream it had any associations of significance. I may dream I'm at Disneyland, but my dream Disneyland may have no resemblance at all to the real thing, but the fact that I know that's where I am may carry along association I have with the place "Happiest place on earth" for example.

Color's another one you have to think about what it means to you personally. As an outsider the olive drab, kind of brings to mind military clothing and reinfornces the notion of things being regimented, controlled, etc. - but greens and earth tones in general can represent life and life force. The red in our culture usually brings up concepts of Passion, anger, violence, or love - things that get your blood boiling. But, in Asian cultures, it may represent luck.