Writing seems to rob me of my being: it is a second hand mode of communication, a pallid, mechanical transcript of speech, and so always at one remov… - Terry Eagleton

It follows that through its constitution ideology is involved in the functioning of this social-imaginary relation, and is therefore necessarily false; its social function is not to give agents a true knowledge of the social structure but simply to insert them as it were into their practical activities supporting this structure. Precisely because it is determined by its structure, at the level of experience the social whole remains opaque to the agents. In class-divided societies this opacity is over-determined by class exploitation and by the forms which this exploitation takes in order to be able to function in the social whole. Hence, even if it includes elements of knowledge, ideology necessarily manifests an adequation / inadequation vis-à-vis the real.

In conscious life, we achieve some sense of ourselves as reasonably unified, coherent selves, and without this action would be impossible. But all this is merely at the ‘imaginary’ level of the ego, which is no more than the tip of the iceberg of the human subject known to psychoanalysis. The ego is function or effect of a subject which is always dispersed, never identical with itself, strung out along the chains of the discourses which constitute it.

Understanding is always in some sense retrospective, which is what Hegel meant by remarking that the owl of Minerva flies only at night.