All things, except God, receive externally some perfection from other things. We will not now consider the unity of His mystical Trinity, but rather dwell upon the necessity of His inherence in all things, without which no creature could retain existence for a moment. We speak of His comprehensive unity because it is an object of hope to men; it is that of which Christ thought when he said: 'Neither pray I for these alone, but for them also which shall believe on me through their word: that they may be all One, as Thou, Father, art in me, and I in Thee.' There is no matter, no spirit, that is not capable of unity of some kind with other creatures, in which unity is found their several perfections, and which is a source of joy for all who see it. The Unity of Spirits is partly in their sympathy, partly in their giving and taking, and ever in their love, their inseparable dependency on each other and _always_ on their Maker--not like the cold peace of undisturbed stones and solitary mountains, but the living peace of trust, the living power of confidence, _of hands that hold each other and are still_! Who has not felt the strength of united love? In the sudden emotion common to humanity which we all experience at the sight of suffering, and which brought tears from the Holy One on the death of Lazarus, in the strange shivering which we feel pervade our souls at the shrill cry of anguish, do we not recognize more than a simple resemblance of nature--do we not feel that the _race_ is really _One_, that a common grief again unites it, that in this _oneness_ we are all justly partakers in the sin of Adam, that in this _oneness_ we may partake of the glory of the Brother who died to _unite_ the finite with the Infinite?
It is to this essential _unity_ of the race that the dramatist owes much of his power; for let him but strike the common strings of grief and love, and the crowd at once show by their words, their gestures, their looks, and often by their tears, their earnest sympathy. Even at the spectacle of an imaginary grief their hearts are moved, the sorrow thrills through every soul; if the poet has been true to nature, they feel that his imaginary characters are but part and parcel of themselves in their woe. Thus the emotion excited by dramatic representations has its source in the very root of our being, the _unity_ of our common nature, in our common brotherhood; consequently, neither in the instincts of the body nor the caprices of the poetic fancy. If the poet would not break the bond, let him respect the _unities_ of nature, whatever view he may take of those of convention. It is to this wonderful unity with our common nature that the greatest of all uninspired writers, Shakspeare, owes his universal acknowledgment, his unequalled power.