What is the meaning of the 'necklace of nine gems' and the 'nine-donation' mentioned in the context of Sai Baba?

In Chapter 33, the text explains the deep symbolism associated with the number nine in relation to Sai Baba's grace. It states that for a devotee whom Baba's hand has touched, it is like receiving a "necklace of nine gems." This is not a literal piece of jewelry but rather a metaphor for the priceless treasure of ninefold devotion and love (Navadha Bhakti), which serves as a form of remembrance of Baba. The passage also alludes to a future event, a "nine-donation," which would reveal Baba's remarkable generosity at the time he gave up his body. This suggests a profound spiritual significance tied to the number nine, representing a complete form of devotion.