[494] _The cord_: The services of Geryon are wanted to convey them down the next reach of the pit; and as no voice could be heard for the noise of the waterfall, and no signal be made to catch the eye amid the gloom, Virgil is obliged to call the attention of the monster by casting some object into the depth where he lies concealed. But, since they are surrounded by solid masonry and slack sand, one or other of them must supply something fit to throw down; and the cord worn by Dante is fixed on as what can best be done without. There may be a reference to the cord of Saint Francis, which Dante, according to one of his commentators, wore when he was a young man, following in this a fashion common enough among pious laymen who had no thought of ever becoming friars. But the simile of the cord, as representing sobriety and virtuous purpose, is not strange to Dante. In _Purg._ vii. 114 he describes Pedro of Arragon as being girt with the cord of every virtue; and Pedro was no Franciscan. Dante's cord may therefore be taken as standing for vigilance or self-control. With it he had hoped to get the better of the leopard (_Inf._ i. 32), and may have trusted in it for support as against the terrors of Inferno. But although he has been girt with it ever since he entered by the gate, it has not saved him from a single fear, far less from a single danger; and now it is cast away as useless. Henceforth, more than ever, he is to confide wholly in Virgil and have no confidence in himself. Nor is he to be girt again till he reaches the coast of Purgatory, and then it is to be with a reed, the emblem of humility.--But, however explained, the incident will always be somewhat of a puzzle. [495] Dante attributes to Virgil full knowledge of all that is in his own mind. He thus heightens our conception of his dependence on his guide, with whose will his will is blent, and whose thoughts are always found to be anticipating his own. Few readers will care to be constantly recalling to mind that Virgil represents enlightened human reason. But even if we confine ourselves to the easiest sense of the narrative, the study of the relations between him and Dante will be found one of the most interesting suggested by the poem--perhaps only less so than that of Dante's moods of wonder, anger, and pity. CANTO XVII.