Physics of the afterlife, continued

NDERF.org is now offering a free ebook; it's basically a compendium of past NDE accounts submitted to the site over the past decade. I've just started it and I'm already fascinated. As I've argued, there's really no need to worry about whether this or that public / high-profile NDEr is sincere or just trying to sell a booI--simply seek out the free and freely available NDE accounts. Usually, they're better than the published accounts.

Case in point: "Wilfred B.'s" NDE account. Short story: he took a spill on his motorbike, trying to avoid a collision. As he approaches collision, he begins to experience a peculiar dual consciousness as he begins to leave his physical body. He then observes his arm "with texture, yet transparent" (something that I've witnessed personally), and then:

...when realizing that I was higher in the air, these sparks began to form.  Not exactly like a typical spark of electricity, but similar along with a thicker dimension to each spark.  As a type of plasma with just enough of a thickness to notice black on one edge or side and silver on another side. A spark, then three, then they began to "stream" together into a vertical line and travel down, then to my left, then upwards and then back to the right...

I find this particular description--of the non-physical "body" leaving the physical--to be remarkable, because this phenomenon has actually been photographed. I'm not sure how well-known these images are, but they deserve to be. The photographs were given to Echo Bodine by a police officer who was documenting a fatal auto accident in the early 1980s. The resultant photos displayed anomalies that the officer could not explain. The photo that has fascinated me the most is this one. Echo believes that this photo shows "the boy’s spirit body as it leaves the physical body prior to re-coalescing outside of the body."  I think she's right.

If both Wilfred's NDE and the iisis.net photos are what they seem to be--observations of the "spirit" body as it initially separates from the physical--is it possible to determine what, exactly, the "spirit" body is?  Is there a physical or quasi-physical element (or state) that causes matter (or energy, or plasma) to form into lines that can be photographed--but not "seen"?  Because as abundant photographic evidence demonstrates--"spirit" can be easily photographed, but only rarely visually observed.  So we are left with the paradox: what can be photographed, but not "seen"?