Imperceptibly, the habitual passes over into the instinctive and the impulsive. What we are accustomed to do, that we do "automatically." Likewise we automatically make gestures, movements of welcome and aversion which we have never learned but which we do "naturally." They have their springs of action in the instinct of self-preservation and in the feelings connected with it. But what we are accustomed to do, we must first have learned and practiced. It is just that practice, the frequent repetition, that brings about the performance of the act "of itself," like a reflex, rapidly and easily. The rope dancer is able to walk the rope, because he is accustomed to it. Habit and practice are also the reasons not only why a man can perform something but also why he performs it with relatively less effort and attention. Habit is the basis not only for our knowing something but also for our actually doing it. Habit operates as a kind of stimulus, and, as may be said, as necessity. The "power of habit" has often been described and often condemned. As a rule, opinions (mental attitudes) are dependent upon habit, by which they are conditioned and circumscribed. Yet, of course, opinions can also detach themselves from habit, and rise above it, and this is done successfully when they become general opinions, principles, convictions. As such they gain strength which may even break down and overcome habit. Faith, taken in the conventional religious sense of assurance of things hoped for, is a primitive form of will. While in general habit and opinion on the whole agree, there is nevertheless in their relations the seeds of conflict and struggle. Thought continually tends to become the dominating element of the mind, and man thereby becomes the more human.