The myth of the Phaedo is of the same type, but it is more cosmological, and also more poetical. The beautiful and ingenious fancy occurs to Plato that the upper atmosphere is an earth and heaven in one, a glorified earth, fairer and purer than that in which we dwell. As the fishes live in the ocean, mankind are living in a lower sphere, out of which they put their heads for a moment or two and behold a world beyond. The earth which we inhabit is a sediment of the coarser particles which drop from the world above, and is to that heavenly earth what the desert and the shores of the ocean are to us. A part of the myth consists of description of the interior of the earth, which gives the opportunity of introducing several mythological names and of providing places of torment for the wicked. There is no clear distinction of soul and body; the spirits beneath the earth are spoken of as souls only, yet they retain a sort of shadowy form when they cry for mercy on the shores of the lake; and the philosopher alone is said to have got rid of the body. All the three myths in Plato which relate to the world below have a place for repentant sinners, as well as other homes or places for the very good and very bad. It is a natural reflection which is made by Plato elsewhere, that the two extremes of human character are rarely met with, and that the generality of mankind are between them. Hence a place must be found for them. In the myth of the Phaedo they are carried down the river Acheron to the Acherusian lake, where they dwell, and are purified of their evil deeds, and receive the rewards of their good. There are also incurable sinners, who are cast into Tartarus, there to remain as the penalty of atrocious crimes; these suffer everlastingly. And there is another class of hardly-curable sinners who are allowed from time to time to approach the shores of the Acherusian lake, where they cry to their victims for mercy; which if they obtain they come out into the lake and cease from their torments. Neither this, nor any of the three greater myths of Plato, nor perhaps any allegory or parable relating to the unseen world, is consistent with itself. The language of philosophy mingles with that of mythology; abstract ideas are transformed into persons, figures of speech into realities. These myths may be compared with the Pilgrim’s Progress of Bunyan, in which discussions of theology are mixed up with the incidents of travel, and mythological personages are associated with human beings: they are also garnished with names and phrases taken out of Homer, and with other fragments of Greek tradition.