A poem. . . begins as a lump in the throat, a sense of wrong, a homesickness, a lovesickness. . . . It finds the thought and the thought finds the words.
Source: Letter, 1 Jan. 1916, to poet and anthologist Louis Untermeyer (published in The Letters of Robert Frost to Louis Untermeyer, 1963).
-- Robert Frost, (Mar 26 1874-1963), US poet; He was America's unofficial poet laureate who wrote of rural New England, e.g., The Road Not Taken.