Is Sai Baba still present and active even after leaving his physical form? How does the text support this?

Yes, Chapter 43 strongly asserts that Sai Baba's presence is eternal and unbroken. After leaving his physical form, he merged into the unmanifest and now resides in the hearts of his devotees, always keeping them spiritually awake. The text states that in his true form, he 'fills the moving and non-moving world' and has become one with Brahman. To support this, the Satcharita draws parallels between Sai Baba in Shirdi and other great saints like Gyaneshwar in Alandi and Samarth Ramdas in Parli, all of whom are considered eternally present. It assures us that even today, devotees experience his influence according to the feeling in their own minds, proving his presence is ongoing.