I remember my school-day speculations over an old “Chemistry” I used to study as a text-book, which informed me that a substance called Caloric exists in all bodies. In some it exists in a latent state; it is there, but it affects neither the senses nor the thermometer. Certain causes develop it, when it raises the mercury and warms the hands. I remember the awe and wonder with which, even then, I reflected on the vast amount of blind, deaf, and dumb comfort which Nature had thus stowed away. How mysterious it seemed to me that poor families every winter should be shivering, freezing, and catching cold, when Nature had all this latent caloric locked up in her store-closet,—when it was all around them, in everything they touched and handled! In the spiritual world there is an exact analogy to this. There is a great life-giving, warming power called Love, which exists in human hearts, dumb and unseen, but which has no real life, no warming power, till set free by expression. Did you ever, in a raw, chilly day just before a snowstorm, sit at work in a room that was judiciously warmed by an exact thermometer? You do not freeze, but you shiver; your fingers do not become numb with cold, but you have all the while an uneasy craving for more positive warmth. You look at the empty grate, walk mechanically towards it, and, suddenly awaking, shiver to see that there is nothing there. You long for a shawl or a cloak; you draw yourself within yourself; you consult the thermometer, and are vexed to find that there is nothing there to be complained of,—it is standing most provokingly at the exact temperature that all the good books and good doctors pronounce to be the proper thing,—the golden mean of health; and yet perversely you shiver, and feel as if the face of an open fire would be to you as the smile of an angel. Such a life-long chill, such an habitual shiver, is the lot of many natures, which are not warm, when all ordinary rules tell them they ought to be warm,—whose life is cold and barren and meagre,—which never see the blaze of an open fire. * * * * * [Sidenote: Regret.] The bitterest tears shed over graves are for words left unsaid and deeds left undone. “She never knew how I loved her.” “He never knew what he was to me.” “I always meant to make more of our friendship.” “I never knew what he was to me till he was gone.” Such words are the poisoned arrows which cruel Death shoots backward at us from the door of the sepulchre.