What practical steps can I take to deepen my devotion and experience the Guru's grace, based on the personal account in the text?

A practical method for deepening devotion is illustrated by a personal experience shared in Chapter 19. The author decided to test the truth of the saints' sayings about nurturing good thoughts. On a Thursday in the holy place of Shirdi, he resolved to do continuous chanting of Rama's name. This practice began the night before, immersing his mind in remembrance until sleep, and continued immediately upon waking. This firm resolve and consistent practice of nurturing a good thought led to a profound experience. Chapter 19 advises that by surrendering with an undivided heart and undertaking such practices, a devotee can witness the wonder of devotion and experience Sai's marvels daily.