The text in Chapter 10 states that Baba's movements were 'imperceptible'. Can you elaborate on this concept using the details provided in the chapter?

The concept of 'imperceptible' movements in Chapter 10 is directly linked to Sai Baba's mysterious nature and divine powers. The chapter illustrates this by describing how he would rest on a narrow wooden plank hung from the ceiling by rags. It explicitly notes that no one ever knew when he climbed up or when he descended from this precarious spot, even with lamps burning nearby. This imperceptibility was not due to stealth but was a manifestation of his Siddhis (powers). The text suggests that powers like 'Anima' (becoming minute) allowed him to move with the ease of an insect, making his actions undetectable to ordinary human senses.