Chapter 16 mentions a 'sword of Knowledge' and the 'tree of worldly existence.' What is the relationship between these two concepts?

In the poetic descriptions at the start of Chapter 16, the Sadguru, Sai Baba, is depicted holding a 'sword of Knowledge' that shines brilliantly. The text states that when he raises his hand to strike with this sword, the 'tree of worldly existence' (Bhav-vriksha) trembles in fear. This powerful metaphor, found in Chapter 16, illustrates a core teaching: the profound wisdom and knowledge imparted by the Guru have the power to cut through the roots of worldly attachment, illusion (Maya), and the endless cycle of birth and death, which is what the 'tree of worldly existence' represents.