I have not watched the video.
But the halo and the cross are artifacts from a lens.
You can have the best produced lens in the world, but if someone shoots a bright light directly into it, you will get some artifacts.
I am a professional photographer. I have about $50,000 worth of the best glass for cameras you can get.
Whether or not the light is of this world? I have no idea and will not venture a guess.
Probably a piece of ice from the ISSA toilet?.........................