When forced to work within a strict framework, the imagination is taxed to its utmost and will produce its richest ideas. Given total freedom, the work is likely to sprawl.
T. S. EliotWhat a poem means is as much what it means to others as what it means to the author; and indeed, in the course of time a poet may become merely reader in respect to his own works, forgetting his original meaning.
T. S. Eliot