We saw that the inner being of unconscious nature is a constant striving without end and without rest. And this appears to us much more distinctly when we consider the nature of brutes and man. Willing and striving is its whole being, which may be very well compared to an unquenchable thirst. But the basis of all willing is need, deficiency, and thus pain. Consequently, the nature of brutes and man is subject to pain originally and through its very being. If, on the other hand, it lacks objects of desire, because it is at once deprived of them by a too easy satisfaction, a terrible void and ennui comes over it, i.e., its being and existence itself becomes an unbearable burden to it. Thus its life swings like a pendulum backwards and forwards between pain and ennui. This has also had to express itself very oddly in this way; after man had transferred all pain and torments to hell, there then remained nothing over for heaven but ennui.