The main idea of those planes is to change space's size by moving a corner in relation to a wall in diagonal. This creates a space which can fill a vast diversity of functions.
The rail system which enables the corner to move.
The diagonal wall that compresses and expands the space.
a space which can be open... or very closed.
From the indoor space, the structure is usable and understandable.
But from the outdoor space there is a mystical space which where you can't understand the structure.
The structure from below.