I read that in a book called The Parable of the Beast by biologist John Bliebtrau when I was at the university and it has stuck with me ever since. We ‘see’ ourselves, we imagine ourselves to be and so we are but , are we what we appear to be?
There is a warm up exercise based on Spolin Theater Games. The instructions are to acquaint yourself with the space and the objects in the space. Try to see the object or part of the room without identifying it . Say hello. Wait for it to respond. Discover rather than identify what you see. I always found it fascinating how it opened up a new space and the sense of getting to know the space I was in. It occurs to me as I write that this would be something to do as a yoga practice as well. Discover rather than identify who I am.