What do we call visible light? We call it color. But the electromagnetic spectrum runs to zero in one direction and infinity in the other, so really, children, mathematically, all of light is invisible.
Our society has forgotten that all of life can be a work of art, even the most mundane-seeming tasks... There is great beauty in cleanliness and order and bringing it into being. Watering the plants is as necessary as cleaning the stove, and vice versa. All these tasks bespeak care for oneself and others, and appreciation of the opportunity to create a temenos -- a sanctuary, a safe and sacred place.