because it is a simple box crossed by a rope.
The situation changes when you turn on the lamp, in fact you can see the spreading of the warm light beam and the revelation
of the wood knots and veins in transparency, although the lamp is closed.
The rope supports the lower side (diffuser) and the intermediate plane
(place where light bulb is inserted) and guides them downwards in order to change the light intensity.
To maintain the intermediate plane horizontal, the rope breaks down into three individual strands and passes through the
plane in 3 different areas, then returns to a single strand.