Based on the text, what qualities must a person possess to be considered worthy of discussing the science of Self-knowledge?

The source material from Chapter 20 is very specific about the prerequisites for engaging with the science of Self-knowledge, which it describes as a 'weapon that cuts through birth and death.' The text explicitly states that 'Only those who are humble and detached are worthy of its discussion.' This implies that intellectual prowess or scholarly status is insufficient. The path to understanding the hidden truth requires a foundation of humility and a lack of attachment to worldly things. By following such humble and detached people, one's intellectual obstructions are cleared, and clarity is achieved. The narrative emphasizes that Guru's grace, combined with these personal qualities, makes the difficult path to Self-knowledge accessible.