The dramatic poet, as well as the epic, represents external events, but he represents them as real and present. In common with the lyric poet he also claims our mental participation, but not in the same calm composedness; the feeling of joy and sorrow which the dramatist excites is more immediate and vehement. He calls forth all the emotions which the sight of similar deeds and fortunes of living men would elicit, and it is only by the total sum of the impression which he produces that he ultimately resolves these conflicting emotions into a harmonious tone of feeling. As he stands in such close proximity to real life, and endeavours to endue his own imaginary creations with vitality, the equanimity of the epic poet would in him be indifference; he must decidedly take part with one or other of the leading views of human life, and constrain his audience also to participate in the same feeling.
To employ simpler and more intelligible language: the _tragic_ and _comic_ bear the same relation to one another as _earnest_ and _sport_. Every man, from his own experience, is acquainted with both these states of mind; but to determine their essence and their source would demand deep philosophical investigation. Both, indeed, bear the stamp of our common nature; but earnestness belongs more to its moral, and mirth to its animal part. The creatures destitute of reason are incapable either of earnest or of sport. Animals seem indeed at times to labour as if they were earnestly intent upon some aim, and as if they made the present moment subordinate to the future; at other times they seem to sport, that is, they give themselves up without object or purpose to the pleasure of existence: but they do not possess consciousness, which alone can entitle these two conditions to the names of earnest and sport. Man alone, of all the animals with which we are acquainted, is capable of looking back towards the past, and forward into futurity; and he has to purchase the enjoyment of this noble privilege at a dear rate. Earnestness, in the most extensive signification, is the direction of our mental powers to some aim. But as soon as we begin to call ourselves to account for our actions, reason compels us to fix this aim higher and higher, till we come at last to the highest end of our existence: and here that longing for the infinite which is inherent in our being, is baffled by the limits of our finite existence. All that we do, all that we effect, is vain and perishable; death stands everywhere in the back ground, and to it every well or ill- spent moment brings us nearer and closer; and even when a man has been so singularly fortunate as to reach the utmost term of life without any grievous calamity, the inevitable doom still awaits him to leave or to be left by all that is most dear to him on earth. There is no bond of love without a separation, no enjoyment without the grief of losing it. When, however, we contemplate the relations of our existence to the extreme limit of possibilities: when we reflect on its entire dependence on a chain of causes and effects, stretching beyond our ken: when we consider how weak and helpless, and doomed to struggle against the enormous powers of nature, and conflicting appetites, we are cast on the shores of an unknown world, as it were, shipwrecked at our very birth; how we are subject to all kinds of errors and deceptions, any one of which may be our ruin; that in our passions we cherish an enemy in our bosoms; how every moment demands from us, in the name of the most sacred duties, the sacrifice of our dearest inclinations, and how at one blow we may be robbed of all that we have acquired with much toil and difficulty; that with every accession to our stores, the risk of loss is proportionately increased, and we are only the more exposed to the malice of hostile fortune: when we think upon all this, every heart which is not dead to feeling must be overpowered by an inexpressible melancholy, for which there is no other counter-poise than the consciousness of a vocation transcending the limits of this earthly life. This is the tragic tone of mind; and when the thought of the possible issues out of the mind as a living reality, when this tone pervades and animates a visible representation of the most striking instances of violent revolutions in a man's fortunes, either prostrating his mental energies or calling forth the most heroic endurance--then the result is _Tragic Poetry_.