By now that we have deepened the mystery and all attempts to understand it had failed. We still do not know why mathematics would impose itself into modern physics. In this chapter we turn the tables: We start with science (physics) and then carefully examine how mathematics appeared in there. How did mathematics intrude into the world of physics, what was the mechanism? This chapter consists of three independent essays: on Plank and quantum, Einstein and light, and Heisenberg and uncertainty. As before, these essays stand alone and can be read independently. At the end we offer a conclusion, in which we realize that we are even more entangled and confused. Math appears everywhere, of that we are certain, but why? We have no clue!