Most reborn folks regardless of, or "IF", the experience, or belief system, HAVE to spread the word. Usually all they have to share is a "belief" though.
There is essentially no requirement, nor reason to believe, that a person has achieved any realization, to "save the world", or to act this way. They just have to believe it.
Still incomplete beings thinking God is out there, or in here, somewhere.
It is totally what one wishes to believe. In Buddhism (ZEN for example)the inner light is not a Godly thing, but an obstruction(illusion)that must be gone through.
Staying in the duality of "sacred and profane" is a trap. Scary to let go though, because people do not have enough trust in their own selves. Without the crutch of a belief/value system the fear of the unkown is overwelming, and causality is never transcended.