Based on Chapter 11, what methods did Sai Baba use to guide devotees from attachment to his physical form towards an understanding of the eternal, formless reality?

According to Chapter 11, Sai Baba employed numerous methods to help devotees transition from focusing on his manifest (Saguna) form to realizing the unmanifest (Nirguna). He would strategically create distance, sometimes sending a devotee to another country, confining them to solitude in Shirdi, or even forbidding them from seeing him for long periods. The chapter explains this practice was designed to cultivate a longing for the Nirguna. Baba taught that the physical body is perishable, and devotees should not grieve its end but focus on the eternal. This entire visible world, including Baba's form, came from the Unmanifest and will return to it, affirming that Shri Sai is eternally pure and deathless.