What is the Satcharita's guidance when a devotee is attached to a specific saint or deity not explicitly named by Sai Baba?

The guidance from the Satcharita, particularly in Chapter 19, suggests that such attachment is a valid and powerful path. The book emphasizes the principle that "As the action, so the hearing; as the practice, so the benefit." This indicates that the sincerity of your practice is what is paramount. The author's own experience confirms this: he resolved to chant Rama's name and Sai immediately gave encouragement without even moving his lips. The key, as described in this chapter, is to surrender with an "undivided heart" and witness the wonder of devotion, for Sai Baba is the universal Guru who stands behind every sincere devotee, as he promised, "I am standing behind you with a bowl."