You can detect 4 dimensions. Yet there are several dozen more you cannot see or feel. But they exist.
First of all, the extra dimensions are still a theory, like your god. And secondly, I'm agnostic, I see no proof either way for or against the possibility of their being a god, and if anyone ever puts forth proof either way, I'm open to changing my mind. It's the only rational position to have.
Yes, many dimensions are just theory, like God is and gravity is.
Everything in the universe is math, from a Higgs Boson to a spiral galaxy. Do you know what Fibonacci numbers are? If not, look it up. Everything has them. Everything.
Tell me, using your rationale position, what law in physics says chaos evolves into order?
Gravity isn't a theory you fucking retard.

And is there a point to your math deflections?
The word "law" describes an analytic statement. It gives us a formula that tells us what things will do. For example, Newton's Law of Universal Gravitation tells us that "Every point mass attracts every single point mass by a force pointing along the line intersecting both points. The force is directly proportional to the product of the two masses and inversely proportional to the square of the distance between the point masses." That formula will let us calculate the gravitational pull between the Earth and the object you dropped, between the Sun and Mars, or between me and a bowl of ice cream.
But we have no idea why.
The law of gravity that describes the attraction between two objects.
The theory of gravity that describes why the objects attract each other.
As far as the Fibonacci numbers and their appearance in everything in the universe, to many scientists it points to the existence of a Creator.
But obviously all of this is above your education and comprehension level, so never mind.