My Thoughts do not really matter, all that matters is what the Bible says about the piont you raise. As far as your Autistic child, one Bible passage covers that case, this Bible passage being Acts 17:30-31:-- "And the times of this ignorance God winked at [that is ignored, did not judge them for their previous ignorance]; but now commands all men every where to repent: 31Because He [God] has appointed a day, in the which He will judge the world in righteousness by that man [Jesus] whom He has ordained; whereof he has given assurance unto all men, in that he has raised him [Jesus] from the dead."

From this Bible passage I do know that God will not judge your Autistic child for his ignorance, but will wink at your child's ignorance of Spiritual Matters. God will however not wink at those who deliberately remain ignorant if they have the capability of thinking rationally about such Spiritual Matters.

RE "Tau" in post 331. A tau is used on a Freemason's apron to indicate that the brother is a past master of his lodge.