How is Sai Baba's ability to be anywhere explained using the analogy of the sky?

Chapter 40 explains Sai Baba's omnipresence by comparing his state to that of the sky or space. It posits that concepts like "coming and going" are just worldly talk. For the sky, there is no such thing as coming from one place to another because it is already everywhere, "perfectly full, inside and out." Similarly, Baba's state is described as inscrutable and all-pervading. Just as space permeates everything, Baba pervades both the moving and the unmoving. Therefore, for a being like him, there is no real "coming" or "going"; he simply manifests at will wherever he chooses.