One morning, Plato tells us, as Socrates was in the Porch of the King Archon, he met Euthyphro, a learned Athenian soothsayer, on his way to accuse his father of impiety for having caused the death of a slave. Socrates, who was also expecting an accusation against himself, engaged him in a conversation, as his manner was, on the nature of impiety, and its opposite, piety. The talk leads Euthyphro to maintain that piety or holiness consists in learning how to please the gods in word and deed, by prayers and sacrifices. "Then," inquires Socrates, "sacrifice is giving to the gods, and prayer is asking of the gods?" and Euthyphro is driven to assent to the conclusion that piety is an art which gods and men have of doing business with one another. It was a satirical description of the popular Greek view. But the argument of Socrates really corresponds to world-wide practice. However dim and confused the elements of belief may be, every tribe has some rites and ceremonies which express the desire to get the Powers {134} which encompass it upon its side. And when this desire, after many ineffectual trials, has succeeded in establishing suitable methods of approach, the endeavours which produce the result tend to become fixed; they are cherished from generation to generation; they form solemn customs which must be maintained with strict inviolate order, even though their original meaning may have been long forgotten. Belief may fluctuate in a kind of fluid medium of imagination, but action cannot have this indeterminate and elastic character. Action is the mode through which feeling obtains expression, while it helps at the same time to intensify the emotion which calls it forth. The rite must be done or omitted; it cannot trail off into shadow and vagueness. And it gathers the whole weight of tribal sanction around it; so that even the simplest elements of common usage are moulded under the powerful pressure of the "weight of ages." The active side of religion may be considered under two aspects. There is, on the one hand, the effort to enter into helpful relations with the energies which pervade nature and operate on man. Such efforts spring from manifold emotions of hope and fear, of affection and reverence. They seek to inaugurate such relations; to maintain them through the vicissitudes of experience, the phases of life, the sequences of time; and to renew them when they have suffered sudden {135} shock or gradual decay. By such action the original emotion is reawakened when it has declined, and is raised to greater vividness and higher tension. It may be summed up in the term worship, including sacrifice and prayer, often associated with a wide range of acts cognate in purpose, as well as with manifold varieties of sacred persons and sacred products (Chap. VI).