Gospel of Thomas
Let me answer your bold questions :D
Do those kinds of statements refer to the spiritual radiance that produced the shroud of Turin?
Wrong assumption. Even though, there is strong scientific evidence that the shroud is a forgery, there is obviously a kind of stale-mate when it comes to conclusive evidence. There is however one big problem with the shroud, that has nothing to do with science, only common sense — according to legend, Jesus was an average Jew, not distinguishable in appearance from his peers. Yet, the man from shroud is 5'11'’ with long hair and untrimmed beard. The average height of men in that area and time was 5'6'’ and they had short hair and either trimmed beards or were clean shaved (see roman fashion of that time, and also 1 Corinthians 11:14). So, the man from shroud would stand out in a big way. Not to mention that the first known depiction of Jesus portraits him clean shaved and with short hair (Dura-Europos around 240 AD).
So “spiritual radiance” in this case is a moot point.
Is this the same mysterious light from both the transfiguration and the resurrection?
See above. Also, the light Jesus talks about in those quotes is the light of consciousness.
Could anyone have seen Christ’s aura even without the use of second sight?
Anyone can see auras without “second sight” to begin with. “Second sight” is one big misconception.
Why would Jesus not be able to or not want to forgive blasphemy of the holy ghost?!???
Not that he would or could not, but someone who condemns (blasphemes) the essence of his very Self, will be always condemned wherever they go. It’s quite logical — who hates themselves is always hated (and not even Jesus’ forgiveness can help them).
Was he referring to resurrection?
No. He’s referring to eternal nature of existence and consciousness, and ever-changing nature of phenomena.
Better yet, is every Christian supposed to perform the miracle?
Yes.
