The scripture says Baba is 'subservient to his devotees.' What does this mean, and does this quality persist after he left his body?

As explained in Chapter 48, Sai Baba acts as one who is 'subservient to his devotees' because of the pure love he sees in them. This is described as his vow, a way to clearly show the multitude of devotees that he is their beloved. This is not a sign of weakness but of his immense love and responsiveness. The text goes on to state a profound truth: this quality of being a benefactor to his devotees does not end even after he left his physical body and merged with the Unmanifest. It assures devotees that the same actions he performed while in the body can be experienced by the faithful even today in his Unmanifest state, demonstrating the eternal and formless nature of his grace and love.