Identifying an Angel..., Can someone help? Options

(Hi - I'm new. First post! Yay!)

But I came here to ask about an angel - I guess I should start at the beginning.

It was during my "awakening" I suppose - when I was becoming more and more aware of spiritual things around me, when I had a dream (they're all usually straight forward, so I don't think this was symbollic at all) - I was in a garden, and seeking out someone - and when I found him, he was an angel. I forget even how I knew - He was floating just a bit above me.

He wore long white robes with a red cross upon them. I can't really remember what he looked like, or what he said (he said something very cryptic) and then I was awoken as if someone had dropped me/pushed me on the bed.

Is there any way of identifying angels by the garments they wear? Colors?

I see. Well it's been driving me bananas.... Since he appeared to me in a dream would it be possible to seek him out during a Lucid Dream?

I don't do the whole invoking/evoking/whatever thing, so my options are limited (IMG:style_emoticons/default/smile.gif)