Why did Sai Baba suggest that the wise instruct in 'Ignorance' (Ajnana) rather than 'Knowledge' (Jnana)?

In Chapter 39, Sai Baba offers a profound reinterpretation of a verse by suggesting the word 'Knowledge' (Jnana) be understood as 'Ignorance' (Ajnana). He reasoned that true Knowledge is beyond words and cannot be a topic of instruction. Ignorance, on the other hand, being the veil or obstruction, is something that can be discussed, described, and understood. He explained to Nana that by focusing instruction on the nature of Ignorance, one can learn how to remove it. Once Ignorance is removed, the self-existent Knowledge is automatically revealed without needing to be taught. This reversal in thinking is meant to provide a true awakening.