What was the deeper significance of Sai Baba's comment about eating onions to the visiting Yogi?

In the narrative from Chapter 23 of Sai Satcharitra, Sai Baba's comment about onions was a profound, multi-layered response to the visiting Yogi's unspoken doubt. When the Yogi questioned Baba's spiritual stature upon seeing Him eat onions, Baba's reply, "One who has the strength to digest it may eat onion freely," was a display of His omniscience. On a spiritual level, it implied that only a true Guru with immense spiritual power (strong digestion) can process and remain unaffected by all worldly things, transcending conventional rules. This demonstration that Baba could read his innermost thoughts shattered the Yogi's doubt, causing him to surrender with true devotion and recognize Baba's supreme state.