What are the spiritual concepts and practices personified as the 'eight ministers' in Sai Baba's service in Chapter 16?

In the allegorical court of the Guru-King described in Chapter 16, eight key spiritual concepts and practices are personified as ministers engaged in his service. These eight ministers are listed as Detachment, Devotion, Pure Knowledge, Shravan (Hearing), Manan (Reflection), and Nididhyasan (Meditation). The final two ministers who serve him are Self-investigation and Realization. This metaphorical description illustrates that these qualities and practices are essential components of the path to the Self-bliss that Sai Baba embodies.