It must be remembered that sensations of the ugly and evil impress us more violently than those of what is agreeable and yet leave less knowledge as the residue of the shock: sickness makes the rougher mark, but health, tranquilly present, explains itself better; it takes the first place, it is the natural thing, it belongs to our being; illness is alien, unnatural and thus makes itself felt by its very incongruity, while the other conditions are native and we take no notice. Such being our nature, we are most completely aware of ourselves when we are most completely identified with the object of our knowledge.
This is why in that other sphere, when we are deepest in that knowledge by intellection, we are aware of none; we are expecting some impression on sense, which has nothing to report since it has seen nothing and never could in that order see anything. The unbelieving element is sense; it is the other, the Intellectual-Principle, that sees; and if this too doubted, it could not even credit its own existence, for it can never stand away and with bodily eyes apprehend itself as a visible object.