It has vanished. The truth is, a corner has no independent existence. It is in essence-nothing. The only time it appears to have existence is when it joins two opposing planes, forces, or dimensions. This ability to join two opposing forces is called depth, or omek in hebrew.
Depth is the mystery of life, the hidden dimension.
The corner also exists in time. It is the interval after sunset and before darkness called shkiat hachama in hebrew. This time is not day and not night. Men and women. Two different worlds, two different ways of relating to life.