5564. There are spirits small in stature who when they speak, thunder, one sometimes like a troop. It is innate in them to speak so. They are not from this earth, but from another, which of the Lord's Divine mercy will be spoken of when I speak of the inhabitants of the various earths. It was said that they relate to the shield like cartilage in front of the chest, and which serves as a support in front to the ribs, and also to the various muscles of tone.