Consider next the double action. It has certain strictly dramatic advantages, and may well have had its origin in purely dramatic considerations. To go no further, the secondary plot fills out a story which would by itself have been somewhat thin, and it provides a most effective contrast between its personages and those of the main plot, the tragic strength and stature of the latter being heightened by comparison with the slighter build of the former. But its chief value lies elsewhere, and is not merely dramatic. It lies in the fact--in Shakespeare without a parallel--that the sub-plot simply repeats the theme of the main story. Here, as there, we see an old man 'with a white beard.' He, like Lear, is affectionate, unsuspicious, foolish, and self-willed. He, too, wrongs deeply a child who loves him not less for the wrong. He, too, meets with monstrous ingratitude from the child whom he favours, and is tortured and driven to death. This repetition does not simply double the pain with which the tragedy is witnessed: it startles and terrifies by suggesting that the folly of Lear and the ingratitude of his daughters are no accidents or merely individual aberrations, but that in that dark cold world some fateful malignant influence is abroad, turning the hearts of the fathers against their children and of the children against their fathers, smiting the earth with a curse, so that the brother gives the brother to death and the father the son, blinding the eyes, maddening the brain, freezing the springs of pity, numbing all powers except the nerves of anguish and the dull lust of life.[141]