This fact lays the foundation for a distinction in practical matters which it is very important to recognize. It is often the case that there is an amount of evidence that produces a conviction which rests in the mind, but does not produce its appropriate practical result. For example, a man in feeble health has read enough on the subject to be convinced that a daily bath in cool water would tend to restore strength, and yet the belief does not secure the practice. But on a review of the books which produced the conviction, or on hearing some lecturer on health, the conviction becomes more powerful, and leads to a corresponding practice.
Now, in reference to the fact that there are multitudes of convictions which are inoperative, which, if vividly realized, would become principles of action, there is a distinction made, in common parlance, between a dead or ideal faith, and a living or practical faith. Still more is this distinction recognized in matters of religion, as will be hereafter shown.
The question whether faith or belief is under the control of the will, or whether it is necessary and inevitable, is one of very great importance both in regard to our happiness and our obligations.
If belief is not under the control of the will, it must be because either the mind has not the power of directing its attention to evidence, or because it is so made that, when it perceives the truth, it can not distinguish it from falsehood.
In regard to the first alternative, the control which the mind has over its own train of thought has been definitely pointed out and described in the articles on attention and on the will. It appears that the will is the regulating principle, which governs all mental operations by selecting the modes of happiness which the intellect shall be employed in securing. Whatever mode of present or of general happiness is selected, immediately all conceptions which the judgment discerns as having a fitness for accomplishing this object become vivid and distinct, and recall their associate conceptions. Thus it is the choice of any mode of enjoyment by the will which determines the train of thought.
When, therefore, any question is brought up which demands attention to evidence, if the mind has some desire to gratify, and the intellect discerns that the conviction of this truth will interfere with this chosen plan of happiness, the will refuses attention to what is not in consonance with the leading desire of the mind. Where conviction of any truth is foreseen to interfere with some plan of enjoyment already chosen, the only way by which attention can be secured is by exhibiting some evil that will follow inattention which will more than counterbalance the good to be gained. In this case, the mind may choose to attend, and run the hazard of losing the particular mode of enjoyment sought in order to avoid the threatened evil from inattention to evidence.
This is the method men pursue in all their intercourse with each other. They find that their fellow-men are unwilling to believe what is contrary to their own wishes and plans. But when they determine that belief shall be secured, they contrive various modes to make it appear either for their pleasure or their interest to attend to evidence, or else they exhibit some evil as the consequence of neglecting attention.
The only mode by which mankind are induced to give their thoughts to the concerns of an invisible world is by awakening their hopes of future good to be secured, or by stimulating their fears of future evils. It thus appears, from the laws and operations of the mind of which every person is conscious, and also from the conduct and recorded experience of mankind, that the mind has the power of directing its attention to evidence.
The other alternative which would establish the principle that belief is not under the control of the will is, that truth, when seen by the mind, can not be distinguished from falsehood. But this, it can be seen, involves a denial of the principles of reason and common sense. It is saying that the mind may have the evidence of the senses, memory, and all the other principles included in the laws of reason, and yet not believe it; for every process of reasoning is, in fact, exhibiting evidence either of the senses, memory, or experience, that a certain truth is included under a primary truth.
The only position which can be assumed without denying the principles of reason and common sense is, that belief, according to the laws of mind, is exactly according to the amount of evidence to which the mind gives its attention.