Can you explain the specific prediction Sai Baba made to Ramchandra Dada Patil regarding Tatya's fate?

As detailed in Chapter 42, when Ramchandra Dada Patil was gravely ill and had lost all hope, Sai Baba appeared to him. Baba, the embodiment of compassion, first reassured Patil that his own life danger had passed. However, Baba then made a specific and solemn prediction about another devotee, Tatya. He told Ramchandra, "In the Shaka year 1840, in the month of Ashvin, in the bright half during Vijayadashami, Tatya will attain the eternal state." Baba insisted that this information be kept secret from Tatya, fearing he would lose heart and pine away if he knew of his impending death.