The passage emphasizes the importance of honing one's memory and sensitivity in writing. The author urges to eliminate unnecessary fluff from one’s work, encouraging the writer to express thoughts clearly and powerfully. This call to clarity involves removing weak similes and focusing on delivering messages with directness and vigor.

Furthermore, the advice extends to a lifestyle commitment, suggesting that sacrifices are necessary for the sake of one’s craft. The metaphorical encouragement to use one's blood as ink signifies the depth of dedication required to produce impactful and authentic writing, implying that true artistry demands both discipline and a certain level of isolation.