How did Sai Baba know about Laxmichand's craving for khaja and fulfill it?

According to Chapter 28 of the Shri Sai Satcharitra, Laxmichand developed a craving for a sweet called khaja after having it once as prasad in Shirdi. The next day, his desire lingered. On the third day, demonstrating his inner knowledge, Sai Baba specifically instructed a devotee to bring a "plate full of khaja" as a food offering. Later, after the arati, Baba announced to all the devotees that he felt like having khaja prasad and that everyone should be served. Two bowls of the sweet were then brought and distributed, perfectly fulfilling Laxmichand's unspoken wish and filling his heart with joy. This incident showed that Baba was aware of even the smallest desires in his devotees' hearts.