Penelope Fitzgerald. Charlotte Mew and her friends

...why do poets impersonate at all? They may do it because they have a great deal to hide, or because (like Browning) they haven't quite enough. They may (like Byron) be too energetic or too self-indulgent to contain themselves, they may (like Eliot) want to escape from emotion, or (like Yeats) from the unsatisfactory limitations of self.