On the path of our life, we have to debate and to choose our decisions. The free will is about many things but sometimes we need help. To reach the goal, we must be silent, to hear the little lark ( the little bird) who is the voice of the unexpected divine help, or perhaps our angel appeared to us between the solid statues of our life.
The geometrical insert, the square and the circle, are the symbols of our existence as beings embodied to experience emotions, fights, sorrows, pain and glory together. Everybody of us we have a whole inner world, in which we exercise all these moments. There are the singularities that motivates the world.