It is a law both of the intellectual and the spiritual nature that by beholding we become changed. The mind gradually adapts itself to the subjects upon which it is allowed to dwell. It becomes assimilated to that which it is accustomed to love and reverence. Man will never rise higher than his standard of purity or goodness or truth. If self is his loftiest ideal, he will never attain to anything more exalted. Rather, he will constantly sink lower and lower. The grace of God alone has power to exalt man. Left to himself, his course must inevitably be downward. (GC 555.1) MC VC

To the self-indulgent, the pleasure-loving, the sensual, spiritualism presents itself under a less subtle disguise than to the more refined and intellectual; in its grosser forms they find that which is in harmony with their inclinations. Satan studies every indication of the frailty of human nature, he marks the sins which each individual is inclined to commit, and then he takes care that opportunities shall not be wanting to gratify the tendency to evil. He tempts men to excess in that which is in itself lawful, causing them, through intemperance, to weaken physical, mental, and moral power. He has destroyed and is destroying thousands through the indulgence of the passions, thus brutalizing the entire nature of man. And to complete his work, he declares, through the spirits that “true knowledge places man above all law;” that “whatever is, is right;” that “God doth not condemn;” and that “all sins which are committed are innocent.” When the people are thus led to believe that desire is the highest law, that liberty is license, and that man is accountable only to himself, who can wonder that corruption and depravity teem on every hand? Multitudes eagerly accept teachings that leave them at liberty to obey the promptings of the carnal heart. The reins of self-control are laid upon the neck of lust, the powers of mind and soul are made subject to the animal propensities, and Satan exultingly sweeps into his net thousands who profess to be followers of Christ. (GC 555.2) MC VC