The conditions of the sentience had been here, he imagined, fulfilled in the method of the collocation of these stones -- in the order of their arrangement, as well as in that of the many fungi which overspread them, and of the decayed trees which stood around -- above all, in the long undisturbed endurance of this arrangement, and in its reduplication in the still waters of the tarn. What is the effect of parallelism in this excerpt? It emphasizes Usher’s warm sentiment toward his home. It emphasizes the careful construction of the House of Usher. It emphasizes Usher’s reverence for nature. It emphasizes the tedious details of Usher’s beliefs.