" By paying a certain kind of attention, you can humanise or dehumanise, cherish or strip of all value. By a kind of alienating, fragmenting and focal attention, you can reduce humanity – or art, sex, humour, or religion – to nothing. You can so alienate yourself from a poem that you stop seeing the poem at all, and instead come to see in its place just theories, messages and formal tropes; stop hearing the music and hear only tonalities and harmonic shifts; stop seeing the person and see only mechanisms – all because of the plane of attention. More than that, when such a state of affairs comes about, you are no longer aware that there is a problem at all. For you do not see what it is you cannot see. "

― Iain McGilchrist , The Matter With Things: Our Brains, Our Delusions, and the Unmaking of the World