Rem tene, verba sequentur: grasp the subject, and the words will follow. This, I believe, is the opposite of what happens with poetry, which is more a case of verba tene, res sequenter: grasp the words, and the subject will follow.
Umberto EcoHe had prepared his death much earlier, in his imagination, unaware that his imagination, more creative than he, was planning the reality of that death.
Umberto Eco