Our eyes do not tell us what we are seeing, it is our brains that do this. Once the brain has seen an object and named it, it is categorised and fixed.
Everything we see eventually becomes a habit and an assumption which the brain applies to everything the eye sees and which we live by — very useful. We accept it as the truth but it is only a habitual associative and assumptive way of seeing the world.
But once you put a question in front of what the brain tells you it sees it becomes something very different and we begin to really see. We begin to question our perceptions of what the real world is like – it is not what we think we see .