What specific spiritual activity did Sai Baba undertake in the fortnight leading up to his Mahasamadhi, as narrated in Chapter 44?

Chapter 44 of the Shri Sai Satcharitra gives a specific and poignant account of Sai Baba's final days. The text states that Baba, fully aware that his end was near, engaged in a focused spiritual practice for two weeks. During this entire period of fourteen days and nights, he had a Brahmin recite the Ramayana, to which he listened with intense contemplation. As Chapter 44 chronicles, the completion of these two weeks of listening to the holy epic coincided precisely with the day of Vijayadashami, which was the day Baba chose to leave his physical body and attain the bodiless state, or Mahasamadhi.