The quote reflects a deep internal struggle faced by the character, emphasizing the importance of taking decisive action to avoid a life rendered meaningless. To merely "fall into it again in appearance" suggests that passive acceptance of one's situation can lead to regret and despair. The urgency to act stems from a belief that inaction would negate all efforts made in seeking redemption and personal growth.
Ultimately, the character is driven by the desire to find purpose and meaning in life. If he were to retreat into complacency, all his efforts, including penitence for past wrongs, would feel futile. This sense of urgency highlights the human need for transformation and the fear of living a life devoid of significance.