Based on Chapter 48, what specific actions and attitudes must a devotee cultivate to achieve spiritual benefits like liberation and having their desires fulfilled?

Chapter 48 outlines several requirements for a devotee. The foundational element is faith, as the text states, 'where there is faith, there is God.' To receive the benefits of listening to the Sai Satcharitra, one must do so with a 'pure heart and good faith,' which will lead to the fulfillment of all desires. Furthermore, the chapter notes that crossing the 'ocean of existence' becomes easy by actively serving Sai’s feet with a devotional spirit, remembering him, and listening to his story while being alert in all states, which helps break the bonds of Karma.