Samuel Taylor Coleridge, The Complete Poems

"In Xanadu did Kubla KhanA stately pleasure-dome decree:Where Alph, the sacred river, ranThrough caverns measureless to man Down to a sunless sea."

"What if you slept?What if you slept And what if In your sleep You dreamed And what if In your dream You went to heaven And there plucked a strange and beautiful flower And what if When you awoke You had that flower in you hand Ah, what then?"