According to Sai Baba, what is the relationship between Knowledge, Ignorance, and the role of a Guru?

According to Sai Baba's teaching in Chapter 39, Knowledge is not something to be acquired but something that is already self-existent and ever-present, like the sun. Ignorance, which he equates with the beginningless Nescience (Avidya) and the delusion of Maya, acts as a veil obscuring this inherent Knowledge. He uses analogies like a film over the eye or ash covering a fire to illustrate this. The role of the Guru, therefore, is not to "give" or "teach" Knowledge, as it is beyond words. Instead, the Guru's function, facilitated by a disciple's service and questioning, is to help remove the film of Ignorance. Once the darkness of Ignorance is swept away, the self-existent Knowledge reveals itself naturally.