When you were young and very ill, they asked you where you went in your dreams. You'd say under a banner woven with marigolds and mango leaves. Or a forest, or a dock leading away into a country of darkly endless water. Or a world of such intense heat, the tips of your lashes would have been singed had you not wept. Somewhere in a room with high windows, your body trembled from the shock of being laid on a bed of ice or metal: this is how you learned of whispering columns; of passages where, tapping through walls, a pulse kept asking who you were