Having spent a little time with the disabled boy that I'm preparing for baptism and wondering how to tell him about Jesus, I realised that it will have to be by revelation from the Lord himself. And this makes sense because, as Christians, we say that our faith is a revealed rather than a deductive faith - that's to say what we know of God is through what he reveals, rather than what we deduce.
There is a place for logical argument and persuasion, but also a place for direct supernatural encounter. I have heard stories of people - though I have not actually met them - who claim that they encountered Jesus supernaturally through a dream. St Paul - the ultimate thinking theologian - knew about dreams and visions, and I see no reason why God shouldn't make himself known in that way if there is no other.
So that's my prayer for this boy - that Jesus would make himself known in a way that goes beyond rational and intellectual explanation, however simple.