from it, and in this process of repetition depression assumes more and more the character of play. C. EXPERIMENTATION WITH THE WILL Since our inquiry in this closing section is not as to the general use of the will in play, but rather into playful experimentation with the will itself, we must direct our attention to the control of movement. Play requires that those movements which depend on both inherited and acquired brain paths shall be under voluntary control. The pleasure accompanying this control is founded on the feeling of freedom and of mastery over self; and it is to be specially noted that almost all the related phenomena take the form of contests and appeal to the fighting instincts. The majority of cases require the suppression of emotional expression or of such reflexes as are connected with them. Thus, for example, winking is not an expression of emotion in the ordinary sense, and yet when it follows closely on the sudden presentation of some object before the eyes it seems to indicate that the person is startled or even terrified. Children often play with this refractory reflex, one moving his hand rapidly before the eyes of another, who makes desperate efforts to keep them open, and a forfeit game is played as follows: Two persons sit or stand opposite one another; one moves his hand close to the other’s eyes while the following colloquy takes place: “Are you going in the woods?” “Yes.” “Going to take some bread with you?” “Yes.” “And you want some salt on it?” “Yes.” “Are you afraid of the wolf?” If he holds his eyes open all the time he is not afraid, but if he winks he must pay a forfeit.[355] The attempt is often made, too, to resist the impulse to laugh while two persons gaze into each other’s eyes. Indeed, such games are too numerous to mention. The effort to repress the expression of pain is still more interesting. Self-control during the suffering of physical pain is everywhere regarded as a proof of manliness, and is earnestly cultivated by savages as by our own boys. The quiet submission to painful tattooing, the endurance displayed by Indian children often in gruesome ways, the effort of our schoolboys to bear corporal punishment unflinchingly, the self-control of students who joke while their wounds are being sewed, and—to carry the struggle against self-betrayal into the field of mental suffering as well—the apparent indifference of gamblers to the reverses of fortune; while all of these can by no means be called playful, still the cases are sufficiently numerous in which there is actual playful experimentation with the powers of endurance. For example, Rochholz describes this test: Two persons strike the knuckles of the doubled-up fists together, and measure their will power by the length of time that they can endure the pain. Another is to strike the first and middle fingers against those of the other person. A friend of mine told me that as a boy (probably after reading some Indian tales) he once wagered with