How does the beginning of Chapter 16 describe Sai Baba's method of imparting knowledge and dealing with worldly illusion?

Chapter 16 uses powerful imagery to describe the Sadguru's role as a teacher. It mentions the 'sharp blade of the sword of Knowledge' that shines brilliantly in His hand, causing the 'tree of worldly existence (Bhav-vriksha)' to tremble in fear. This signifies His power to cut through illusion. Paradoxically, the chapter also notes that He sometimes dons a 'cloak of ignorance' to impart knowledge to the ignorant. This suggests that He meets people at their own level, giving 'sweet instruction' without transgressing social norms to gently guide them toward truth.