All that we intend to bring out clearly through these investigations, the impossibility of attaining lasting satisfaction and the negative nature of all happiness, finds its explanation in what is shown at the conclusion of the Second Book: that the will, of which human life, like every phenomenon, is the objectification, is a striving without aim or end. We find the stamp of this endlessness imprinted upon all the parts of its whole manifestation, from its most universal form, endless time and space, up to the most perfect of all phenomena, the life and efforts of man. We may theoretically assume three extremes of human life, and treat them as elements of actual human life. First, the powerful will, the strong passions (Radscha-Guna). It appears in great historical characters; it is described in the epic and the drama. But it can also show itself in the little world, for the size of the objects is measured here by the degree in which they influence the will, not according to their external relations. Secondly, pure knowing, the comprehension of the Ideas, conditioned by the freeing of knowledge from the service of will: the life of genius (Satwa-Guna). Thirdly and lastly, the greatest lethargy of the will, and also of the knowledge attaching to it, empty longing, life-benumbing languor (Tama-Guna). The life of the individual, far from becoming permanently fixed in one of these extremes, seldom touches any of them, and is for the most part only a weak and wavering approach to one or the other side, a needy desiring of trifling objects, constantly recurring, and so escaping ennui. It is really incredible how meaningless and void of significance when looked at from without, how dull and unenlightened by intellect when felt from within, is the course of the life of the great majority of men. It is a weary longing and complaining, a dream-like staggering through the four ages of life to death, accompanied by a series of trivial thoughts. Such men are like clockwork, which is wound up, and goes it knows not why; and every time a man is begotten and born, the clock of human life is wound up anew, to repeat the same old piece it has played innumerable times before, passage after passage, measure after measure, with insignificant variations. Every individual, every human being and his course of life, is but another short dream of the endless spirit of nature, of the persistent will to live; is only another fleeting form, which it carelessly sketches on its infinite page, space and time; allows to remain for a time so short that it vanishes into nothing in comparison with these, and then obliterates to make new room. And yet, and here lies the serious side of life, every one of these fleeting forms, these empty fancies, must be paid for by the whole will to live, in all its activity, with many and deep sufferings, and finally with a bitter death, long feared and coming at last. This is why the sight of a corpse makes us suddenly so serious.