Chapter 49 ranks several spiritual practices. What is this hierarchy, and what does it declare to be the greatest practice of all?

Chapter 49 outlines a hierarchy of spiritual endeavors. It begins by stating that penance is considered greater than traditional practices like pilgrimages, vows, sacrifices, or charity. It then elevates the singing of Hari's name as being even greater than penance. However, the chapter culminates by declaring that the "meditation on one's own Guru is the greatest of all." For Sai's followers, this means that Sai alone is the ultimate object of meditation and worship, their most protected and secret treasure. This places devotion to the Guru at the apex of all spiritual activities.