There's a difference between understanding the world objectively (or at least trying to, anyway) and experiencing it through an exclusively objective framework. Everything you know, everything you've touched, seen, and smelled, has been filtered through any number of physiological and cognitive processes. Your subjective experience of the world is unique. Another way of saying all this is that the universe can only be observed through a brain, and by virtue of that, can only be interpreted subjectively. But given that the universe appears to be coherent and (somewhat) knowable, should we continue to assume that its true objective quality can never be observed or known?