Memories are dark matter. A presence that is implied more than palpable, and impossible to see directly. Observable only by the effects they have, which are abundant and influential. As we shape our memories, our memories in turn shape our present. Each time we remember we recreate that memory, and change it. The present and past collide. The present and our perception of the past are dual. One creates the other.
The shape of the cage around the Ibis is called an Archimedean dual. The black lines form a dodecahedron, and the gold ones form a cuboctahedron. The dodecahedron arises from dualizing the cuboctahedron - meaning that if you were to mark a point in the middle of each face of the cuboctahedron, and connect those points by lines, you would draw the edges of a dodecahedron. Each shape creates its own space, and when combined form something distinctive.