=The secret sin--how learned.=--The special abuse we shall consider at this time is one that small girls are liable to learn or to have taught them by companions or servants. This habit has several names. It is called the “secret sin,” or “secret vice,” for the reason that every organ of the body, faculty of the mind and power of the soul is abused by it; “self-pollution,” because it is filthy; or “masturbation,” which comes from two words meaning the abuse of the body with the hand. This abuse consists in rubbing or handling the sexual organs so as to excite them and bring on a feeling of pleasure. Usually this vice is taught a girl by some companion. If a girl does not keep these parts clean, they become irritated and she will be disposed to rub or scratch them. In this way she would likely awaken a sense of pleasure and finally discover the vice. It sometimes occurs, not often, that a small ligament or membrane, called the frenum, is too short or broad, and this causes irritation and leads a girl to discover the secret vice. If you should find yourself inclined to rub those parts often, you should mention it to mamma. A girl may, by pressing this part of her body against some object, or by sitting with her feet underneath her, with the sole or heel of a shoe pressing or rubbing against these organs, discover this vice. =What you should not do.=--From these illustrations you will learn that you should never handle or rub these organs except to wash and keep them clean. When you study these organs with a view to understanding them, or when you think of their sacred functions, these mental relations to these organs never do them harm. But when you entertain thoughts about them that you would not be willing to express to your mother; when you read an immoral book, look upon an obscene picture or engage in improper conversation about these organs, then these mental states cause the blood to rush to these organs and sex consciousness and passion follow. A girl cannot keep from the secret sin if she permits her mind to engage in wrong thinking. =The moral effect of the sin.=--Perhaps the first effect of this sin is to be seen in the moral nature. The expression in the girl’s face often indicates that she is conscious of wrong doing. She will likely become irritable, peevish and disobedient. She will not take the interest in prayer, the Bible, good books and the church she once did. =The mental effects.=--The constant excitement of the organs of sex leads to many forms of nerve trouble. The mind becomes sluggish and stupid. Memory fails and sometimes the poor victim becomes insane. This habit leads to a gloomy, despondent, discouraged state of mind. One does not longer enjoy life. Because of this mental state many commit suicide.