Indeed, anything goes! What matters is the result of experiments. Fundamentally science is about understanding more about the world. It does not matter if there are "magical" or "mythical" entities or not. In fact, I would even argue that my current position as to science and religion is similar to that of the position taken by Georges Lemaître.

There's a lot of peculiarity when you study science and even math. Some things just seem too elegant to be coincidental like Euler's equation and the phenomenon of emergence, but even if they are coincidental that realization of coincidence and the slim chance of it happening is also fascinating. On the other hand there are also mind-boggingly unelegant things about nature that require empirical methods because exact and analytical methods aren't cutting it to describe phenomena. It feels all like a mish-mash of different mechanics/rules put together. I do believe Lemaître understood it well that by researching the sciences we also, in its own way, are trying to learn and know about God and his creations (assuming you accept the axiom that God created the universe).