In later chapters we shall learn that in habit-formation, attention is an important factor. We must attend to the acts we are trying to make habitual. In getting knowledge, we must attend to what we are trying to learn. In committing to memory, we must attend to the ideas that we are trying to fix and make permanent. In thinking and reasoning, those ideas become associated together that are together in attention. Attention is therefore the controlling aspect of consciousness. It is the basis of what we call _will_. The ideas that are clear and focal and that persist in consciousness are the ideas that control our action. When one says he has made up his mind, he has made a choice; that merely means that a certain group of ideas persist in consciousness to the exclusion of others. These are the ideas which ultimately produce action. And it is our past experience that determines what ideas will become focal and persist. =Training the Attention.= There are two aspects of the training of attention. (1) We can learn to hold ourselves to a task. When we sit down to a table to study, there may be many things that tend to call us away. There lies a magazine which we might read, there is a play at the theater, there are noises outside, there is a friend calling across the street. But we must study. We have set ourselves to a task and we must hold fast to our purpose. The young child cannot do this. He must be trained to do it. The instruments used to train him are pleasure and pain, rewards and punishments that come from parents. Gradually, slowly, the child gains control over himself. No one ever amounts to anything till he can hold himself to a task, to a fixed purpose. One must learn to form plans extending over weeks, months, and years, and to hold unflinchingly to them, just as one must hold himself to his study table and allow nothing to distract or to interfere. No training a child can receive is more important than this, for it gives him control over his life, it gives him control over the ideas that are to become focal and determine action. It is for this reason that we call such training a training of attention. It might perhaps better be called a training of the will. But the will is only the attentive consciousness. The idea that is clear, that holds its own in consciousness, is the idea that produces action. When we say that we _will_ to do a certain thing, all we can mean is that the _idea of this act_ is clearest and holds its focal place in consciousness to the exclusion of other ideas. It therefore goes over into action.