The principle is aesthetic fittingness of various kinds, as studied in aesthetics. (religion-online.org)
There is a correspondence — established in the two great commandments and often lauded by the saints — «between one's desire for natural goods and one's fittingness for the supernatural good» (p135). (faith.org.uk)
And there is something equally fateful, as has been noted so often, in the exact fittingness of the game's dimensions: the ninety feet between bases, the sixty - and - a-half feet between the pitching rubber and the plate, that precious third of a second in which a batter must decide whether to swing. (firstthings.com)