How can I be sure Sai Baba is still watching over his devotees even though he is no longer in his physical body?

Chapter 43 provides assurance by explaining that Sai Baba appeared in Shirdi for the protection of his devotees and continues this role from his unmanifest state. He stays in the hearts of his followers, and by merely remembering his name, the anxieties of birth and death can be overcome. The text states that he always keeps his devotees awake and that his influence is still proven today, with devotees experiencing his presence according to their own feelings and devotion. He is described as the protector of the devotees' cause, filling the entire world.