Can you explain the advanced concept of surrendering one's ego and 'me-ness' as described in the prayer within Chapter 26?

Chapter 26 describes a state of ultimate surrender where the devotee asks the Guru to completely take over their existence. The prayer involves laying one's ego at the Guru's feet and declaring, "from now on, You look after Your own—there is no 'me-ness' left in me." This is further detailed by the plea for Baba to either move the devotee like a puppet according to His will or for Baba to become the devotee's "me-ness" and experience pleasure and pain on his behalf. This signifies a desire to dissolve the individual self and its associated consciousness of pain and pleasure, allowing the divine will of the Guru to operate through the devotee without any interference from personal ego.