The most renowned of the oracles was that of the Pelasgian Zeus at Dodona, in Epirus, and that of Apollo at Delphi, in Phocis. At Dodona the priests listened in the dark forests for the voice of Zeus in the rustling leaves of the sacred oak. At Delphi there was a deep fissure in the ground, which emitted stupefying vapors, that were thought to be the inspiring breath of Apollo. Over the spot was erected a splendid temple, in honor of the oracle. The revelation was generally received by the Pythia, or priestess, seated upon a tripod placed over the orifice. As she became overpowered by the influence of the prophetic exhalations, she uttered the message of the god. These mutterings of the Pythia were taken down by attendant priests, interpreted, and written in hexameter verse. Sometimes the will of Zeus was communicated to the pious seeker by dreams and visions granted to him while sleeping in the temple of the oracle. The oracle of Delphi gained a celebrity wide as the world: it was often consulted by the monarchs of Asia and the people of Rome in times of extreme danger and perplexity. Among the Greeks scarcely any undertaking was entered upon without the will and sanction of the oracle being first sought. Especially true was this in the founding of colonies. Apollo was believed "to take delight in the foundation of new cities." No colony could prosper that had not been established under the superintendence of the Delphian god. Some of the responses of the oracle contained plain and wholesome advice; but very many of them, particularly those that implied a knowledge of the future, were obscure and ingeniously ambiguous, so that they might correspond with the event however affairs should turn. Thus, Croesus is told that, if he undertake an expedition against Persia, he will destroy a great empire. He did, indeed;--but the empire was his own. The Delphian oracle was at the height of its fame before the Persian War; in that crisis it did not take a bold or patriotic stand, and its reputation was sensibly impaired. IDEAS OF THE FUTURE.--To the Greeks life was so bright and joyous a thing that they looked upon death as a great calamity. They therefore pictured life after death, except in the case of a favored few, as being hopeless and aimless. [Footnote: Homer makes the shade of the great Achilles in Hades to say:-- "I would be A laborer on earth, and serve for hire Some man of mean estate, who makes scant cheer, Rather than reign o'er all who have gone down To death."--_Od._ XI. 489-90 [Bryant's Trans.].] The Elysian Fields, away in the land of sunset, were, indeed, filled with every delight; but these were the abode only of the great heroes and benefactors of the race. So long as the body remained unburied, the soul wandered restless in Hades; hence the sacredness of the rites of sepulture.