Then, methought, the air grew denser, perfumed from an unseen censer Swung by Seraphim whose footfalls tinkled on the tufted floor. 'Wretch,' I cried, 'thy God hath lent thee--by these angels he hath sent thee-- Respite--respite and nepenthe from thy memories of Lenore! Quaff, oh quaff this kind nepenthe, and forget this lost Lenore!' Quothe the Raven, 'Nevermore.