It has been said that a poem should not mean but be. This is not quite accurate. In a poem, as distinct from many other kinds of verbal societies, meaning and being are identical. A poem might be called a pseudo-person. Like a person, it is unique and addresses the reader personally. On the other hand, like a natural being and unlike a historical person, it cannot lie.
W. H. AudenIf music in general is an imitation of history, opera in particular is an imitation of human willfulness; it is rooted in the fact that we not only have feelings but insist upon having them at whatever cost to ourselves. The quality common to all the great operatic roles, e.g., Don Giovanni, Norma, Lucia, Tristan, Isolde, Br?nnhilde, is that each of them is a passionate and willful state of being. In real life they would all be bores, even Don Giovanni.
W. H. Auden