Context: The poet addresses this song to his lover of old, Cynara. Since their parting, he has tried to forget her; but when he lies in the arms of another love, Cynara's image intrudes itself before him and devastates him with longing for her. He cannot again be, as the title signifies, the same person he was while living under the domination of her love; he is unable to give himself, at heart, to any other woman; and although he becomes involved in other love affairs, he remains dedicated to her and thus, mentally, is always faithful to her.