In her presentation Claudia Acuna used the old but always pertinent viewpoint on the
treatment of geometric diagrams as Gestalt configurations. In geometry, the figural
aspects of diagrams as symbols are used to solve problems. When figural information
are treated, Gestalt configurations emerge: auxiliary figural configurations, real or
virtual, that give meaning and substance to an idea that facilitates the proof or
solution to the problem. In the paper, some arguments are given to acknowledge the
existence of these resources.