What was Narayanrao's experience with Sai Baba after Baba had already taken Samadhi?

The provided text from Chapter 33 details a profound experience of the devotee Narayanrao after Sai Baba had already attained Nirvana. Three years had passed since the Samadhi, and Narayanrao, who had become restless with a strong desire for Darshan, was afflicted by a severe illness. When all worldly medicines failed, he placed his faith entirely in Baba, meditating on him day and night. His devotion was answered when he had a dream one night. In this vision, Sai Baba appeared to him, emerging from an underground chamber, and gave him direct assurance, saying, 'Do not hold any anxiety in mind; improvement will come from tomorrow onwards; by the time one week ends, you yourself will get up and sit.' True to Baba's words, Narayanrao's health improved daily, and within eight days, he was able to sit up, overwhelmed with emotion. He later traveled to Shirdi to have Darshan of the Samadhi and narrated this experience.