Disclaimer: I own Aquilarah and her Parent only. The idea is mine too. Everything else, unfortunately, belongs to the writers of Supernatural.
It's hard to say exactly when I came into being. I'm not just talking about the date, because that is impossible to tell and not something I care about anyway. I mean the moment I realized that I was me, and I was alive.
It's hard to say because my first memories are of light. Pure, bright, warm light. In that stretch of time, I just was. I didn't much care about anything at all, just relaxing in that loving light that was holding me.
I don't know how long that lasted. It could have been seconds, it could have been eons, but then I was pushed out of the light and warmth. But it was ok, because I could still feel it next to me. That was when I first looked at my Parent. I had been surrounded by them for an indeterminate amount of time, but I didn't really look. Of course, I don't have eyes like humans do, so while technically I could always see, that doesn't mean I had looked before.
My Parent was huge compared to me, although I knew instinctively that I would grow much bigger than I was at the time. They were bright; the personification of light and color. They were a beacon in the Empty that was surrounding us.
Language as you think of it did not yet exist yet at that time, so my Parent communicated with the song of the universe. What she 'said' doesn't really translate to English, but the gist of it was; 'You are my child, loved one.' I did not get a name. Then, no one had a name, there were so few of us, and we all could differentiate easily between everyone.
I wasn't overly curious. There wasn't much to be curious about, because my Parent had given me knowledge of the other beings that existed. How she was closest with her opposite and the personification of being.
But my Parent hadn't given me (much) knowledge of myself. So I looked at myself. At my core I looked alot like my mother, pure light with every color in existence dancing in it, but I also had an aura that was mostly blue, with little swirls of purple sliding around. I decided I liked that very much. I looked like my parent, but I was more specific. That was ok, I didn't want to be them, I wasn't them and I wouldn't ever be. I was me. I also had what might be called wings. They weren't physical, but then, neither was anything else at the time. What they were, well, are, are flares of energy and light. They looked misty and they were mostly my blue-purple mix, but with veins of my parent's colors. I liked them too, and I discovered that I could use them to move around on my own.
I'm not entirely sure how long it took for all of this to occur, time actually, technically didn't exist then, but we still perceived certain events as having happened after others. You just didn't get a sense of anything changing or progressing.
But that is how I came into being.