The voice of a man is more easily affected by supernatural power than many have thought. When evil spirits touch the man's spirit, it may be sometimes recognized by a harsh, metallic sound in the voice, or a hoarse and rough thickness; or these same effects may be noticed in an atmosphere which is very thickly charged by the powers of darkness; showing their effect upon the delicate vocal chords.
In the interference with, or use of the vocal organs and voice, may be placed the counterfeit "gift of tongues," or the exquisite singing which has been termed the "heavenly music," because of its manifest supernatural source, and its being beyond the singer's own natural power.
In pronounced demon possession, evil spirits may affect the voice in an apparently natural way, which is put down to natural causes. For instance, in singing, the man may be doing so with power, and with clear, and bell-like enunciation, but soon there comes weakness in the muscles of the throat, a dry cough, and tears in the eyes, and the singing ceases. The concentration of the eyes upon the music book grows weaker, a sense of heaviness comes on neck and spine; the playing goes on, but heedless, spiritless, dejected and heavy, the singer turns away, putting it all down to "difficulty of breathing," and physical impediment, when it has been entirely a manifestation of the evil spirits in possession.
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