The fundamental experience of the writer is helplessness. This does not mean to distinguish writing from being alive: it means to correct the fantasy that creative work is an ongoing record of the triumph of volition, that the writer is someone who has the good luck to be able to do what he or she wishes to do: to confidently and regularly imprint his being on a sheet of paper. But writing is not decanting of personality. And most writers spend much of their time in various kinds of torment: wanting to write, being unable to write; wanting to write differently, being unable to write differently. In a whole lifetime, years are spent waiting to be claimed by an idea. The only real exercise of will is negative: we have toward what we write the power of veto.
--Louise Glück, "Education of the Poet"