When the mind is quiet you begin to gain discrimination, the ability to discriminate between the known and the unknown.
The known is your perspective on yourself and the world, it is your self-image and world-image, which originate from the images of time.
The perspective distorts reality, because everything you see, is your own perspective, the known, the image.
You don´t see reality itself, truth or the unknown.
Far the most people confuse their perspective with reality, the description with the described, the word with the thing, the map with the landscape.