According to Chapter 44, what specific spiritual activity did Sai Baba undertake in the two weeks immediately preceding his Mahasamadhi?

As detailed in the chronological account within Chapter 44, Sai Baba engaged in a specific and prolonged spiritual practice just before he passed away. Knowing his end was approaching, he arranged to listen to the Ramayana being recited by a Brahmin. This was not a casual activity; the chapter notes he did this with focused contemplation for a continuous period of fourteen days and nights. This two-week observance of listening to the Ramayana concluded on the day of Vijayadashami, which was the very day he attained the state of bodilessness.