Chapter 49 compares several spiritual practices. Which one does it identify as the most important for a devotee?

Chapter 49 presents a hierarchy of spiritual practices to emphasize the supreme importance of focusing on the Guru. The text acknowledges the value of various disciplines, stating that penance is greater than pilgrimages, vows, sacrifices, or charity. It then places the singing of God's name (Hari) as being even greater than penance. However, it concludes that the 'meditation on one's own Guru is the greatest of all.' For devotees, as this chapter clarifies, 'Sai alone is the object of meditation for His devotees; Sai alone is their worship of deities,' establishing Guru-meditation as the paramount practice.