Through the train window, sheets of multicolored glass reflect sunlight. Further on, transferring to the blue line, the yellow of metal plates enhance the whiteness of a nun's veil, assisted by the headlights of the oncoming train.  In the São Paulo subway, art can appear in unusual places, under different lights and can be contemplated from a multitude of points of view and situations. Such dynamism results in an expansion of the dialogue between the spectator and the works of art.