Sanity, as the project of keeping ourselves recognizably human, therefore has to limit the range of human experience. To keep faith with recognition we have to stay recognizable. Sanity, in other words, becomes a pressing preoccupation as soon as we recognize the importance of recognition. When we define ourselves by what we can recognize, by what we can comprehend- rather than, say, by what we can describe- we are continually under threat from what we are unwilling and/or unable to see. We are tyrannized by our blind spots, and by whatever it is about ourselves that we find unacceptable.
Adam Phillips (2005). “Going sane”, Egully.com