She can't be crushed, considering the fact that she spent the majority of her life in a prison of black holes. She was defeated in the Beyond Shadows (I think it's called), which is a world beyond the physical one only accessible by force users who remove their mind from their body. No, her true form isn't made of organic matter. Her true form is just an entity that can't be damaged through normal means. She usually appears in the form of avatars.