Compare Nana's understanding of the Gita verse with Sai Baba's. What fundamental philosophical difference does Sai Baba's interpretation introduce?

In Chapter 39, Nana Chandorkar presents a conventional interpretation of the Gita verse, where devotional acts like service and questioning lead the wise to instruct the seeker in 'Knowledge' (Jnana). This implies Knowledge is a transmissible teaching. Sai Baba, while respecting prior commentaries, introduces a radical philosophical shift. He suggests the verse actually refers to instruction in removing 'Ignorance' (Ajnana). The fundamental difference is this: Nana sees Knowledge as something to be gained through instruction, whereas Sai Baba sees Knowledge as something to be unveiled by removing Ignorance. For Baba, Knowledge is self-existent and beyond words, while Ignorance is the delusion that can be addressed and removed with a Guru's help, leading to a natural awakening.