Now the age, regarded in its dominant tendency, neglects or denies this universal, invariable, persistent, real, or spiritual order, and its highest and most catholic principles are mere classifications or generalizations of visible phenomena, and therefore abstractions, without reality, without life or efficiency. It understands not that throughout the universe the visible is symbolical of the invisible, and that to the prepared mind there is an invisible but living reality signified by the observable phenomena of nature, as in the Christian economy an invisible grace is signified by the visible sacramental sign. All nature is in some sense sacramental, but the age takes it only as an empty sign signifying nothing. Hence the embarrassment of the Christian theologian in addressing it; the symbols he uses and must use have for it no meaning. He deals and must deal with an order of thought of which it has little or no conception. He is as one speaking to a man who has no hearing, or exhibiting colors to a man who has no sight, He speaks of the transcendental to those who recognize nothing above the sensible--of the spiritual to men who are of the earth earthy, and have lost the faculty of rising above the material, and piercing beyond the visible. The age has fallen, even intellectually, far below the Christian order of thought, and is apparently unable to rise even in conception to the great catholic principles in accordance with which the universe is created, sustained, and governed.