what those wrong views mean?

Middle length suttas often include following descriptions of wrong views (MN 44, MN 109, MN131, MN 138): > regards material form as self, or self as possessed of material form, > or material form as in self, or self as in material form. (similar descriptions are given for feelings, perceptions, formations, consciousness. To limit the scope, I'd like to focus on the material part for now, and see whether I understand those insightful categories (as I have a feeling that this slips through the words). For the sake of simplicity I interpret: regards material form as self is basically I am a collection of atoms, self as possessed of material form: this is hard for me to understand, maybe as eager to have many houses and fat bank account?, material form as in self: I can be only certain about things that are taking place in my head? self as in material form: hard to understand.