Andrew Murray emphasizes the importance of living by faith rather than by feelings, illustrating that true belief in God does not rely on personal emotions or experiences. He explains that many Christians struggle with the temptation to seek feelings as a confirmation of their faith, but true salvation and peace come from believing in God's Word alone. Murray encourages believers to focus on faith in Jesus and His promises, asserting that faith leads to a blessed life, while feelings can be misleading. He concludes by urging Christians to make a daily choice to walk by faith, trusting in God's faithfulness and love, regardless of their emotional state.