What does it mean that the manas grasps the perceiving-aspect of the eighth consciousness as self?

The eighth consciousness can perceive all dharmas, and the manas, following the eighth consciousness, can also perceive all dharmas. However, the characteristics of the dharmas perceived by the manas and by the eighth consciousness are different; there is a difference in what is perceived. What the eighth consciousness perceives are non-worldly characteristics, whereas what the manas perceives are worldly dharma-characteristics. Relying on the perceiving-aspect of the eighth consciousness, after perceiving all dharmas, the manas regards all these dharmas as "I" and as belonging to "me"—this is self-view (ātma-dṛṣṭi). Because of this self-view, the manas grasps (upādāna) at all these dharmas, unwilling to relinquish them, universally deliberating and clinging to them; hence the manas is also the consciousness of imputed nature (parikalpita-svabhāva). First there is self-view, and then self-grasping. Because of ignorance, the manas does not understand that all dharmas are generated by the eighth consciousness, all belong to the eighth consciousness, and all possess the attributes of the eighth consciousness. Having perceived all dharmas by relying on the eighth consciousness, it mistakenly takes them to be its own and belonging to itself. This misunderstanding has continued from beginningless kalpas down to the present. If this misunderstanding is not eliminated, self-view cannot be eradicated, the suffering of birth and death cannot cease, and transmigration will not end.