Whilst studying a collection of symbols, gathered from many climes and ages, such as this volume presents, I feel sure that every intelligent student will have asked himself more than once--Is there not some key which unlocks these enigmas, some grand idea which runs through them all, connecting them like a string of beads? I believe that there is, and that it is not far to seek. What do men desire and long for most? Life. "Skin for skin; all that a man hath will he give for his life," is a saying as true now as in the days of Job. "Give me back my youth, and I will give you all I possess," was said by the aged Voltaire to his physician. And our poet laureate has sung, 'Tis Life, whereof our nerves are scant, O life, not death, for which we pant; More life, and fuller, that I want. But we must add, as necessarily contained in the idea of Life in its highest sense, those things which make Life desirable. This fulness of life has been the summum bonum, the highest good, which mankind has sighed for in every age and clime. For this the alchemists toiled, not to advance chemistry, but to discover the Elixir of Life and the Philosopher's Stone. But what nature refused to science, the gods, it was believed, would surely give to the pious! and the glorious prize referred to has been promised by every religion. "I am come that they might have Life, and that they might have it more abundantly." Life is the reward which has been promised under every system, including that of the founder of Christianity. A Tree of Life stood in the midst of that Paradise which is described in the book of Genesis; and when the first human couple disobeyed their Maker's command, they were punished by being cut off from the perennial fount of vitality, lest they should eat its fruit and thus live for ever; and in a second Paradise, which is promised to the blessed by the author of the book of Revelation, a tree of life shall stand once more "for the healing of the nations." To the good man is promised, in the Hebrew Scriptures, long life, prosperity, and a numerous offspring. "Thy youth is renewed like the eagle's."* Ps. ciii. 5. In the wondrous theology of Ancient Egypt, which at length is open to us, the "Ritual of the Dead" celebrates the mystical reconstruction of the body of the deceased, whose parts are to be reunited, as those of Osiris were by Isis; the trials are recorded through which the deceased passes, and by which all remaining stains of corruption are wiped away; and the record ends when the defunct is born again glorious, like that Sun which typified the Egyptian resurrection.** * St. Paul points oat (Eph. vi. 2) that to only one of the ten commandments is a promise added. And what is the promise? "That thy days may be long." (Exod. xx. 12.) See also Psalm cxxxiii. 3, "the blessing, even life for evermore."