The series is made from 4 rectangles thrown upon the plywood field with connecting lines between so that it makes seemingly solid compositions. But not very solid! The elements seem to be moving around.
What is happening if we don't look? The theme refers to electrons and photons buzzing around, colliding with others, giving sparks, like in a Feynman diagram.
(Richard Feynman said: What I cannot create I do not understand.)