Explain the full sequence of events, from Damu Anna writing the letter to his eventual visit to Shirdi, as described in the text.

The sequence began with Damu Anna sending a letter to Sai Baba, outlining a business plan he hoped would make him a millionaire. According to Chapter 25, Madhavrao (Shama) presented this letter to Baba, who already knew its contents and remarked that Damu Anna was "trying to touch the sky." After hearing the letter, Baba advised against the plan, promoting contentment over riches. This reply greatly disappointed Damu Anna. However, the letter also hinted that he should visit in person. Taking this suggestion, Damu Anna traveled to Shirdi, hoping Baba might grant permission face-to-face, though he found he lacked the courage to ask again once he arrived.