Crop Circles and Energy

I'm not sure this belongs here, but some are real, right? (I asked this in a thread in the paranormal section, but no answer so far...)
For those who've seen or know about crop cirlces, if it is true that they have energy orbs coming off/out of them, do those energy orbs also exist in the center of the crop circle?
What causes them? And if they didn't exist in the center of the crop circle, why?
(I wanted to know, because of an interesting dream i had. I don't know all that much about aliens and crop cirlces beyond basic interest, but the dream was interesting. I thought it was important for some reason.)