I'm sure you've heard a thousand times the expression "being of light". I'm quite the skeptic, so I tend to have a materialistic, scientific point of view, but I'm also open minded (and have had my share of "meta" experiences anyway). And thus something quite baffling has just dawned on me.
Quantum electrodynamics views electromagnetism as an interchange of virtual photons (creation and annihilation of photon/anti-photon pairs) as a way to effect electromagnetic force between two particles (you can read up Wikipedia on that if you want). At the same time, electromagnetic forces are what keep molecules together (high-school chemistry), and to some extent atoms themselves (here come into play other subatomic forces without which solid matter could not exist though, propagated by other bosons. Photons are a type of boson). The conclusion being, (expressed in a very simplified manner) that we (and all matter we see around us) are being held together by photons. Thus, if not made of, we are certainly put together using light.
Could it be this knowledge was discovered intuitively (if not empirically) long ago and remained in our cultures as that vague mystic expression? I'd love to hear some speculation and discussion on this. And to those with a scientific training in physics (formal or not), please do come forward and expose the holes in my rationale.
Quantum electrodynamics views electromagnetism as an interchange of virtual photons (creation and annihilation of photon/anti-photon pairs) as a way to effect electromagnetic force between two particles (you can read up Wikipedia on that if you want). At the same time, electromagnetic forces are what keep molecules together (high-school chemistry), and to some extent atoms themselves (here come into play other subatomic forces without which solid matter could not exist though, propagated by other bosons. Photons are a type of boson). The conclusion being, (expressed in a very simplified manner) that we (and all matter we see around us) are being held together by photons. Thus, if not made of, we are certainly put together using light.

Could it be this knowledge was discovered intuitively (if not empirically) long ago and remained in our cultures as that vague mystic expression? I'd love to hear some speculation and discussion on this. And to those with a scientific training in physics (formal or not), please do come forward and expose the holes in my rationale.