What role does light have to play in developing spirituality?

Answer 1

It is a term for coming into the light out of the darkness of your life.

In the darkness sometimes you see shadows of strange things, you feel your way, everything is gray, dingy. you can not see your self or others clearly, there is no good and no bad.
In the light, you see everything clearly. You can see plainly that there is Good and there is Evil. and there is a sharp difference of right and wrong.

from the darkness the light is feared, that it will burn your eyes, body and soul, and many flee from it, less they die from it.