No less remarkable than the external solidarity of the church, and indeed the secret of it, is her consist ent and coherent system of teachings and practices. From the mighty moral principles that reach down to the depths of human nature, to the symbolic regalia of her holiday pageants, all the church's doctrines of faith and precepts of morals and forms of worship are related to a few great truths, and are, in their time and place, the natural and proper expression of those truths.