What was the context and significance of Sai Baba's remark about eating onions?

In Chapter 23, Sai Baba's remark about onions was a direct and profound response to an unspoken judgment. A Yoga practitioner, who came seeking Baba's grace to achieve Samadhi, saw Him eating stale bread and onions and immediately developed a 'strong misgiving,' silently questioning Baba's ability to help him. As the text highlights, Sai Baba, being omniscient, perceived this doubt and said, 'Nana, only those whose digestion is strong should eat onion. One who has the strength to digest it may eat onion freely.' The significance of this statement lies not in dietary advice but in its demonstration of Baba's omniscience. It addressed the Yogi's inner turmoil, startling him into realizing Baba's greatness and leading him to surrender his doubts.