you posted a beautiful question. I have clear visionary about Universal beings, in my opinion it is bit offensive to call them aliens, as there is no such as people presented. Maybe, just one tiny race. In my clear both visions and dreams I seen them as etheric beings full of let's say geometric colorful vivid forms and complex, like a detailed rock in colors and shapes made of air and fire (one race). they came in my vision five years ago to warn me about an event that could danger our atmosphere that is aproaching close and they came from distant multiuniverse to protect us. In next issue of national geo i seen a phenomena around the earth no astronom could explain, a rose and orange trail of light just where they said it would be. I almost cried of happiness when I seen that because it was exact colors of thos universals beings and energy that came into my whisper vision. I told this then just to two of my friends, none of the rest are open minded and would probably call me nuts.
Further on, I know such a race wouldn't ever experiment on human beings or animals, only human do that and to justify that greed they made up alien experimenting stories. It is always easier to blame someone else than to look at the mirror.
Such advanced race who can teleport on such a scale as light trail do not need experimenting on anything, that is my conclusion, if I am right. :)
I didn't mean alien as demeaning. Alien just means things or people that are unfamiliar to us.
I know you didn't.. :)