After his initial profound experience in Shirdi, how did Laxmichand's devotional practices evolve, and how did Baba continue to affirm his omniscience to him?

After Sai Baba fulfilled his desire for khaja and revealed knowledge of his physical ailments, Laxmichand's devotion became deeply rooted and consistent. As described in Chapter 28, his love for Baba was fixed, and he established a regular practice of sending offerings like incense, coconuts, and garlands to Shirdi whenever he found someone traveling there. His devotion became a continuous practice. Baba continued to demonstrate his omniscience to him from afar. On one occasion, Laxmichand saw Baba coughing and had a passing thought that it might be due to an evil eye. The very next morning in the masjid, Baba spoke the exact same thought aloud, once again providing an "echo without sound" and proving that he knew everything in Laxmichand's mind.