The lack of belonging the author points to is caused by the mind and its thinking processes – it is the EGO that is constantly formed by thinking which separates one from the whole. It is the EGO that has created religion and belief and does so via the process of thinking that has become also a habit. Ands habits become unconscious activities if repeated enough. So the outcome of the EGO is an imaginal worldview.
Update: However the author goes slightly off the rails when it comes to fossil fuels and the role of money, more from ignorance than anything else.