The answer is subconscious. It is because our subconscious is the part of the mind in every individual in which a person is not fully aware of all the things around him or her but in a way these influences other people without knowing it and the defense mechanism are the one responsible for protecting an individual in things that may affect the person without knowing it such as his or her feelings.
Answer:
Lethargarians are lazy. When he does see them, Milo realizes there are many of them, everywhere. In addition to their appearance, they are also alike in one thing: they are all doing nothing! They explain to Milo that they aren't allowed to think because it's against the law.
On the lower layer of asthenosphere! Its a floating area of molten rock:) Hope this helps.