Love is the best means of making the heart capable of reflecting the soul-power - love in the sense of pain rather than as pleasure. Every blow, it seems, opens a door in the heart whence the soul-power comes forth. The concrete manifestations of the soul-power can be witnessed in the depth of the voice, in the choice of words, in the form of a sentence or a phrase, in every movement, pose, gesture, and especially in the expression of the man; even the atmosphere speaks, though it is difficult for everyone to hear it.