An art installation is a three-dimensional visual artwork, often created for a specific place (in situ) and designed to change the perception of space.
Our professor in Italy taught us to create frescoes as if we were cooking a delicate dish. With the mixing of the lime and sand, we had to almost learn to ‘hear’ when the surface was ready to be painted on.
This is how an installation works. One feels the atmosphere, hears the message and tastes the bitterness or sweetness of the psychology.