LOL! I almost forgot about that. He went to the cave because he was hearing voices in his head. Arabic sources tell of what we would nowadays call 'depressive episodes' during which he often contemplated doing away with himself...(oh, how I wish!)
It was his considerably older, wealthy wife, a widow, who persuaded him he was 'hearing' the voice of the ArchAngel Gabriel...who told him (so Madmo maintained) that he should RECITE!
So what we are suffering now is the ravings of a psychotic schizophrenic who, for good measure, also suffered from epileptic episodes...
Don't get me started! It's just struck me, Madmo was Kadija's TOY BOY!
Yeah, and rather than get Kerry'd away she sent him to a cave to play...