Bodily Exercises

The body is by nature pure. Therefore we must only estrange from it unnatural cravings and strengthen it in those things which are natural to it; in other words, we must return it to its natural state.

Besides this, the body should assist the soul as its constant companion. Therefore, besides returning it to its natural state, we must turn the very satisfaction of its basic needs to the benefit of the soul and spirit. In satisfying these needs, some sort of exercise should be assigned to each bodily function as another means of healing our fleshliness, thus benefitting us spiritually as well.

Here are the prescribed rules:

1) For the senses: Guard the senses altogether, especially the hearing and vision (nervous system). 2) Guard the tongue. 3) Abstinence and fasting (the stomach). 4) Moderate sleep and vigilance (the stomach). 5) Physical purity (the stomach).

For the body in general. Wear out (muscular), constrain (nervous system) and emaciate yourself (the stomach). It is obvious how through these ascetic practices the body little-by-little returns to its natural state, becomes alive and strong (muscular), bright and pure (nervous system), light and free. It becomes a most capable instrument of our spirit and a worthy temple of the Holy Spirit.

—St. Theophan the Recluse, The Path to Salvation: A Manual of Spiritual Transformation