"Knowledge is grace. Knowing is grace." - Jon Fosse in Septology. This knowledge cannot be explained on a rational level. It is knowing that is beyond the mind and linked to the soul. Truthfully, it is a knowledge given to the soul and accepted by the mind. It is a knowledge that must be felt and not thought. In order to receive that knowledge, is it necessary for one to believe or at least try to believe? That's the mystery. Is love then when one receives that knowledge? This is all based on the individual's experience and not on the collective one. So only one who has received that knowledge can really understand? Words cannot describe such a thing, it cannot be shared because only the mind absorbs the rational\logical explanation which invites immediate skepticism. I know because I have received the knowledge and that is between God and me. My responsibility may be to share it but I cannot convince one who does not believe so why waste time on it? Let the rational be rational and let the believers believe. Live and let live.