Simon Blackburn is describing the Poetic Interpretation of ascending from Plato's Cave:
Part of the charm of Plato is the sense of being in a world in which these fractures did not exist. Ours may be a world in which there is a division between fact on the one hand, and value on the other. But his world is, in the phrase of the godfather of modern sociology, Max Weber, an enchanted world, in which ideas like proportion and harmony efface any such division. Beauty makes both goodness and truth manifest, so its perception and the love it engenders together give us the first step out of the Cave. Beauty is the first erasure of the distinction between fact and value. It is borne in upon us, in erotic experience, like facts. But it is intrinsically or essentially connected with the values of pleasure and love. And just as it erases the fact-value distinction, so beauty erases the tyranny of the self. In loving something or someone for beauty’s sake we are, as Iris Murdoch says, ‘unselfed’. Selfish desire has no place in the pure aesthetic experience.
Does it mean that purity comes with the consequence of selflessness? That if one is clean and pure they must be selfless?