The text says Sai Baba 'merged himself into the unmanifest.' What does this mean, and how does he continue to exist for his devotees?

The phrase 'merged himself into the unmanifest' signifies that Sai Baba did not perish but transitioned from his physical, material form into his true, formless, and eternal state as Brahman. Chapter 43 explains that even after leaving his body, his consciousness remains firmly imprinted in the hearts of his devotees. He is described as being all-pervading, filling the 'moving and non-moving world.' The text assures devotees that he continues to enjoy his true self and 'always keeps the devotees awake,' meaning he is still actively present and guiding them. His influence is proven by the fact that devotees can still have experiences of him based on the feelings in their own minds, demonstrating his unbroken existence.