In diagnosis of physical ailments there are certain rules and procedures to be followed. First of all the disease must be identified. Secondly, the way of treatment must be determined. Thirdly, treatment must begin with the use of appropriate medications and avoidance of harmful things, and continue until complete recovery.
It has already been explained that the diseases of the soul are caused when its powers trespass the bounds of moderation, moving towards the extremes of either deficiency or excess. The way in which these diseases must be treated is the same as that used in treatment of physical illness, and must follow the three stages mentioned above until full recovery is attained.
We shall continue our discussion, describe each disease and indicate its proper treatment. The diseases to be studied shall be divided into the following four categories:
1. Diseases of the Power of Intellect and their treatment.
2. Diseases of the Power of Anger and their treatment.
3. Diseases of the Power of Passion and their treatment.
4. Diseases relating to combinations of any two of these powers, or all three.
Before we begin our discussion of the diseases in these four categories, it must be stated that every one of these powers can exist in either of the three different states of moderation, deficiency, or excess.
In discussing every one of these powers, we shall first consider its deviation towards excess, which is a kind of illness, and indicate its proper treatment. This shall be followed by a discussion of its deviation towards the condition of deficiency and the proper method of treating it. Next we shall consider its state of moderation. We shall conclude our study of each power with an examination of various kinds of moral maladies which may afflict these powers, and their method of treatment.