Based on these passages, what does it mean to be a devotee of 'undivided faith' and what can they expect from Sai?

The concluding message from the excerpts in Chapter 33 emphasizes the power of complete and unwavering devotion. A devotee of "undivided faith" is one who moves beyond mere verbal promises and hesitation, like that shown by Appasaheb, and acts with certainty. The text explicitly states that for such a devotee, who desires a purpose whether it be "worldly or spiritual," Sai is capable of granting the fruit of that desire. This highlights a core principle: unwavering faith and the alignment of one's words and actions are what unlock Sai's full grace and support in achieving any goal.