Please recount the story of the Yoga practitioner who visited Sai Baba in Chapter 23. What was his problem and how was it resolved?

The story from Chapter 23 concerns a Yoga practitioner, or Yogabhyasi, who was well-versed in the Yoga Shastras of Patanjali but could not achieve Samadhi, or intense meditation, for even a moment. Believing Sai Baba to be a "King of Yogis," he came for darshan, hoping Baba's grace would remove his doubts. However, upon seeing Baba eating simple bread with onions, a strong misgiving arose in his mind, and he questioned how such a person could help him. As the narrative in Chapter 23 explains, the omniscient Sai Baba perceived this internal doubt and said, "Nana, only those whose digestion is strong should eat onion." Hearing this, the Yogi was startled into realizing Baba knew his thoughts. He surrendered with true devotion, his doubts were resolved after listening to Baba, and he left happy after receiving Udi and a blessing.