The text says Baba's movements were 'imperceptible.' What does Chapter 10 mean by this and how was it possible?

In Chapter 10, the term 'imperceptible movements' specifically refers to how Sai Baba would get onto and dismount from the narrow wooden plank He slept on, which was suspended from the ceiling. The text emphasizes that no one ever witnessed Him climbing up or down from this precarious resting place. The explanation provided is not one of physical stealth but of divine power. Chapter 10 attributes this to the "Great Siddhis (powers) residing within Him." It suggests He could utilize 'Anima,' the yogic power to become minute, which would make His movements as subtle and unnoticeable as those of flies, insects, or ants, thus rendering them imperceptible to human eyes.