Try for a moment to imagine a world in which there are no windows, but there is only room, corridors, consisting of endless blank walls. It would be a nightmare world in which it would be not only physically a big question, but also mental health. Tolley it was before! All lived in a one-storey houses, the roofs over which was the sky, and not other people. It was enough to leave home to experience direct contact with nature and feel the powerful streams of cosmic energy, pouring from the sky. Perhaps, then, and the windows were not very necessary to people, their homes were a continuation of the very nature, because they were built from natural materials and served as conduits of cosmic energy quality.