If Sai Baba has merged into the unmanifest, what does that mean for his followers today? Is he still present?

Yes, according to Chapter 43, Sai Baba remains ever-present for his devotees despite merging into the unmanifest. The text explicitly warns against doubting his presence, stating that Shri Sai is beyond death. He is said to have stayed in the hearts of his devotees, and by simply remembering his name, the anxieties of birth and death can be overcome. It is mentioned that even today, a devotee can experience his presence according to the feeling in their mind, which proves his continued influence. In his true form, he fills the entire moving and non-moving world and always keeps his devotees spiritually awake and protected.