I don't see how light energy can become matter through that means. I know energy can become matter, and vice-versa, but I can only think of atomic bombs at the moment. Keeping an open mind here, I'm sure it will be possible in the future.

I really like the part about our souls' reincarnations through alien technology. It's a very comforting view on the afterlife. I see a couple questions I could ask (why would they fix our dead souls as opposed to creating new ones?), but if you guess that these people are enlightened, it makes much sense... Good idea for a novel, actually, if a few twists are added (already bubbling in my brain). Anyway, it's unfalsifiable, which means I will never thoroughly believe it, but it sounds highly benevolent, so I like the concept.

The coincidences are coincidences. I could rattle off to you on my clairvoyant dreams (what with accurately portraying blood type, exam scores, and whenever my fish give birth), but that could also be called coincidence. (I know a few slight-of-hands that add to my 'clairvoyance.' It's really fun to trick family members. They ask me for lottery numbers... But I give them an excuse about how the gift of clairvoyance is not to be used as such, blah blah blah. They eat it up. Best of all is I somehow manage to keep a straight face through all of this). Anyway, I don't really accept your coincidences as evidence of spirit materialization merely because of their nature. Pretty cool coincidences, nonetheless.

The cobweb thing is the most convincing piece of your discussion. The nature of your realization is more believable than the rest. I instinctively feel that the cobweb will be related not only to your discussion, but to some other, as of yet hidden purpose (much like the several reports of spinning platonic solids).