“Ideally a poem will be both mysterious (incunabula, driftwood of the unconscious), and organic (secular) at the same time.  If the tension becomes irregular, like a heartbeat, then a series of questions enters the poem.  What is now happening?  What does the poem, itself, consider to be its probabilities?  The poem needs to take care not to flounder, or become rigid, or to come to such a halt the reader hangs over a sudden cliff.  It is noticeable that a poem has a secret grip of its own, separate from its creator.”  ~Barbara Guest, “Forces of Imagination: Writing on Writing”