You may pre-determine to be cheerful, but if you are very susceptible to bad weather, and the day should be dismal, or you should hear of the death of a friend, or a great disaster of any kind, some depression of spirits _must_ ensue.

On the other hand, note well that forming habit by frequent repetition of willing yourself to equanimity and cheerfulness, and also to the banishing of repulsive images when they come, will infallibly result in a very much happier state of mind.

As soon as you actually begin to realize that you are acquiring such control remember that is the golden hour--and redouble your efforts.
_Perseverando vinces_.
I have, I trust, thus far in a few words explained to the reader the rationale of a system of mental discipline based on the will, and how by a very easy process the latter may, like Attention and Interest, be gradually awakened.

As I have before declared, everyone would like to have a strong or vigorous will, and there is a library of books or sermons in some form, exhorting the weak to awaken and fortify their wills or characters, but all represent it as a hard and vigorous process, akin to "storm and stress," battle and victory, and none really tell us how to go about it.

I have indeed only indicated that it is by self-suggestion that the first steps are taken.