The youth need to understand the deep truth underlying the Bible statement that with God “is the fountain of life.”[321] Not only is He the originator of all, but He is the life of everything that lives. It is His life that we receive in the sunshine, in the pure, sweet air, in the food which builds up our bodies and sustains our strength. It is by His life that we exist, hour by hour, moment by moment. Except as perverted by sin, all His gifts tend to life, to health and joy. “He hath made everything beautiful in its time;”[322] and true beauty will be secured, not in marring God’s work, but in coming into harmony with the laws of Him who created all things, and who finds pleasure in their beauty and perfection. [Sidenote: _Right Physical Habits_] As the mechanism of the body is studied, attention should be directed to its wonderful adaptation of means to ends, the harmonious action and dependence of the various organs. As the interest of the student is thus awakened, and he is led to see the importance of physical culture, much can be done by the teacher to secure proper development and right habits. [Sidenote: _Position_] Among the first things to be aimed at should be a correct position, both in sitting and in standing. God made man upright, and He desires him to possess not only the physical but the mental and moral benefit, the grace and dignity and self-possession, the courage and self-reliance, which an erect bearing so greatly tends to promote. Let the teacher give instruction on this point by example and by precept. Show what a correct position is, and insist that it shall be maintained. [Sidenote: _Respiration_] Next in importance to right position are respiration and vocal culture. The one who sits and stands erect is more likely than others to breathe properly. But the teacher should impress upon his pupils the importance of deep breathing. Show how the healthy action of the respiratory organs, assisting the circulation of the blood, invigorates the whole system, excites the appetite, promotes digestion, and induces sound, sweet sleep, thus not only refreshing the body, but soothing and tranquilizing the mind. And while the importance of deep breathing is shown, the practise should be insisted upon. Let exercises be given which will promote this, and see that the habit becomes established. [Sidenote: _Training of the Voice_]