Despite believing that silence is the best form of praise, why did the author feel he had to write and share Sai's stories?

As detailed in Chapter 49, the author initially felt that silence was the most appropriate praise for the Sadguru, whose magnificence exhausts all description. However, he could not maintain this silence because every quality and divine play (Leela) of Sai was so blessed and captivating that it compelled him to speak. He uses the analogy of tasting a sweet delicacy and feeling an irresistible urge to share it with friends, believing that sharing joy doubles the bliss. Ultimately, he reveals that it was Sai Himself who prompted him to begin the Satcharita, both for the benefit of other devotees and for the author's own spiritual self-interest.