But the thing is that with certain theories, suddenly all the little details fit into place just like a jigsaw, and you can see the picture. So that's how it works moments.

The difference between the sciences and the arts is that science has the advantage of being able to predict and test in the modern world. If this is happening then this must be so, so let's have a look, design an experiment and see if it works. The arts do not have this advantage.