“The process of gathering spiritual light is the quest of a lifetime.”
- Dieter F Uchtdorf (Source)
“First of all, we must establish just what light is. How would you define it? Too often we take for granted some seemingly commonplace things, but we cannot define them. The term light has several meanings in science and philosophy, but for simplification we will concentrate on Webster’s ideological definition, which calls it something that makes vision possible, or spiritual illumination.
Though scientists vary in their understanding of the nature of the substance of light, they do say that all energy has its origin in light (mostly from the sun).
"We know that without physical light we cannot see the things around us or even where we are going; and without spiritual light we cannot have knowledge or understanding. We should note that many who cannot see with their physical eyes are not left in darkness, because they have the same opportunity as others for enlightening their minds through spiritual illumination.
"Darkness is described as a condition devoid of light; not receiving, reflecting, transmitting, or radiating light; not clear to the understanding; or showing evil traits and desires. Complete darkness, then, would be the absence of light and truth and thus would not exist in intelligence.” - N Eldon Tanner (Source)
There is an aspect of mortals that is eternal and holy. This is the part of the soul called Intelligence. In my theology, this part is light and was not created. Whereas God is the father of our souls as also our mortal parents procreated our earthly bodies, therefore we exist as a combination of spiritual and earthly matter. (Source)
The light within us is subtly visible and described as a “show of the countenance.” Some people have a “bright” countenance and others a “dark” countenance. We receive light from the presence of God. (Source) It comes from the Holy Spirit independent of our religious beliefs because we “listen” and accept it. “For the word of the Lord is truth, and whatsoever is truth is light, and whatsoever is light is Spirit, even the Spirit of Jesus Christ.” (Source)