How does nurturing good thoughts contribute to a devotee's spiritual journey?

Chapter 19 provides a personal account of how nurturing good thoughts leads to spiritual progress. The text advises that if a wave of good thoughts arises, especially in the early morning hours, one should certainly nurture it. By nourishing that same thought, great satisfaction will be felt, the intellect will also develop, and the mind will feel pleasant. The author tested this by deciding to do continuous chanting of Rama's name, which led to a profound experience and a sense of peace and wonder, confirming it as a valid and beneficial practice.