I have already alluded to that peculiar mode of masonic symbolism by which the speculative mason is supposed to be engaged in the construction of a spiritual temple, in imitation of, or, rather, in reference to, that material one which was erected by his operative predecessors at Jerusalem. Let us again, for a few moments, direct our attention to this important fact, and revert to the connection which originally existed between the operative and speculative divisions of Freemasonry. This is an essential introduction to any inquiry into the symbolism of the corner-stone. The difference between operative and speculative Masonry is simply this--that while the former was engaged in the construction of a material temple, formed, it is true, of the most magnificent materials which the quarries of Palestine, the mountains of Lebanon, and the golden shores of Ophir could contribute, the latter occupies itself in the erection of a spiritual house,--a house not made with hands,--in which, for stones and cedar, and gold and precious stones, are substituted the virtues of the heart, the pure emotions of the soul, the warm affections gushing forth from the hidden fountains of the spirit, so that the very presence of Jehovah, our Father and our God, shall be enshrined within us as his Shekinah was in the holy of holies of the material temple at Jerusalem. The Speculative Mason, then, if he rightly comprehends the scope and design of his profession, is occupied, from his very first admission into the order until the close of his labors and his life,--and the true mason's labor ends only with his life,--in the construction, the adornment, and the completion of this spiritual temple of his body. He lays its foundation in a firm belief and an unshaken confidence in the wisdom, power, and goodness of God. This is his first step. Unless his trust is in God, and in him only, he can advance no further than the threshold of initiation. And then he prepares his materials with the gauge and gavel of Truth, raises the walls by the plumb-line of Rectitude, squares his work with the square of Virtue, connects the whole with the cement of Brotherly Love, and thus skilfullv erects the living edifice of thoughts, and words, and deeds, in accordance with the designs laid down by the Master Architect of the universe in the great Book of Revelation. The aspirant for masonic light--the Neophyte--on his first entrance within our sacred porch, prepares himself for this consecrated labor of erecting within his own bosom a fit dwelling-place for the Divine Spirit, and thus commences the noble work by becoming himself the corner-stone on which this spiritual edifice is to be erected. Here, then, is the beginning of the symbolism of the corner-stone; and it is singularly curious to observe how every portion of the archetype has been made to perform its appropriate duty in thoroughly carrying out the emblematic allusions.