Today we come to the wonderful Solemnity of the Most Holy Trinity. The Trinity: the strangest and most distinctive of all of the doctrines of Christianity; the preacher’s nightmare; the ultimate Rubik’s cube of theology. The Trinity has been characterized in a number of ways—some good, some bad—and we invoke it every single time we make the sign of the cross. Yet most of us live our practical spiritual lives as if the Trinity didn’t matter at all. So what are we to make of it? The Church sets this up by giving us some interesting readings for today.