If such a furious trope may stand, his special lunacy stormed his general sanity, and carried it, and turned all its concentred cannon upon its own mad mark; so that far from having lost his strength, ahab, to that one end, did now possess a thousand fold more potency than ever he had sanely brought to bear upon any one reasonable object. what is the meaning of this excerpt? though ahab is physically weakened, his insanity has strengthened his will for revenge. ahab’s anger has increased his physical strength, and he expects to do battle. ahab has always been somewhat mad, but his insanity has recently flourished. though ahab has lost his ability to seek revenge, he still harbors anger and resentment.