I can well imagine an athiest's last words: "White, white! L-L-Love! My God!" - and the deathbed leap of faith. Whereas the agnostic, if he stays true to his reasonable self, if he stays beholden to dry, yeastless factuality, might try to explain the warm light bathing him by saying "Possibly a f-f-failing oxygenation of the b-b-brain," and, to the very end, lack imagination and miss the better story.