Since Sai Baba has 'merged into the unmanifest,' what does the text say is left for devotees in Shirdi today?

Even though Sai Baba left his physical form and became one with Brahman, his presence and influence remain powerfully active. Chapter 43 clarifies that in his true form, he 'fills the moving and non-moving world.' It explicitly states that a devotee's experience is shaped by their own feeling, and his influence is still provable today. Though he transcended his material state, he 'always keeps the devotees awake' and remains 'firmly imprinted in the hearts of devotees.' Thus, Shirdi is not an empty place but a nexus where one can still connect with the powerful, all-pervading consciousness of Sai Baba.