According to the eleventh chapter, what specific methods did Sai Baba employ to guide his devotees towards realizing the formless (Nirguna) reality?

Chapter 11 reveals that Sai Baba used various means to help his devotees realize the Nirguna, tailored to their individual spiritual eligibility. These methods were designed to detach them from his physical form and foster a deeper, internal connection. For example, he would send one devotee to another country, confine another to solitude within Shirdi, lock someone in the Wada, or assign them the task of reading scriptures. By engaging in these practices over time, the devotees' longing for the formless essence of Baba would intensify, ensuring their minds were constantly occupied with his presence beyond the physical.