What specific methods did Sai Baba use to guide his devotees from devotion to the manifest (Saguna) towards the realization of the unmanifest (Nirguna), as detailed in Chapter 11?

As explained in Chapter 11, Sai Baba employed various methods tailored to a devotee's eligibility to help them transition from Saguna worship to Nirguna realization. He understood that while love for the manifest form is the easier starting point, the ultimate goal is to realize the eternal, formless aspect. To cultivate this, Baba would use countless means, such as sending a devotee to another country, confining another to solitude in Shirdi, locking someone in the Wada, or assigning them the task of reading scriptures. The chapter notes that by practicing these disciplines for years, a devotee's longing for the Nirguna would grow, and their mind would become constantly occupied with Baba’s spiritual company.