MacKenna-Plotinus: star-system

At this, sense-impressions would aim at utility. They may serve also to knowledge, but that could be service only to some being not living in knowledge but stupefied as the result of a disaster, and the victim of a Lethe calling for constant reminding: they would be useless to any being free from either need or forgetfulness. This This reflection enlarges the enquiry: it is no longer a question of earth alone, but of the whole star-system, all the heavens, the kosmos entire. For it would follow that, in the sphere of things not exempt from modification, sense-perception would occur in every part having relation to any other part: in a whole, however - having relation only to itself, immune, universally self-directed and self-possessing - what perception could there be? Granted that the percipient must act through an organ and that this organ must be different from the object perceived, then the universe, as an All, can have [no sensation since it has] no organ distinct from object: it can have self-awareness, as we have; but sense-perception, the constant attendant of another order, it cannot have. Enneads   IV,4,24