What is the significance of the 'sword of Knowledge' and how does it relate to the 'tree of worldly existence' in Chapter 16?

In the poetic descriptions at the start of Chapter 16, the Sadguru is depicted with a "sharp blade of the sword of Knowledge" that shines brilliantly. The text states that upon seeing His hand raised to strike with this sword, the "tree of worldly existence (Bhav-vriksha) trembles in fear." This powerful metaphor signifies that the Guru's supreme spiritual knowledge (Brahma-jnana) has the power to destroy the roots of worldly attachment, illusion, and the endless cycle of birth and death, which is what the 'tree of worldly existence' represents. The trembling of the tree symbolizes the complete vanquishing of Maya-illusion and worldly tendencies in the presence of the Guru's ultimate wisdom, as conveyed in Chapter 16.