How did Sai Baba demonstrate his omniscience to fulfill Laxmichand's unspoken desire for khaja?

Chapter 28 recounts a beautiful leela where Sai Baba fulfilled Laxmichand's unspoken wish. After getting a small taste of khaja one day, Laxmichand silently longed for more. On the third day, without any prompting, Baba instructed devotees who asked about naivedya to "Bring me a plate full of khaja." Later, he announced to everyone, "Today is an auspicious day; I feel like having khaja prasad." This led devotees to bring bowls of khaja, satisfying the very desire that had remained hidden in Laxmichand's mind, proving Baba's inconceivable inner knowledge.