Here you have the same thing. In math you have syntax, and semantics. The other domain from semantics might be abstract, or it can be purely mechanical, but it can also be connected to reality. If your operations map to nothing that makes sense to you, the operations are just mechanical; you solve equations in some way because you know it's right but you don't understand why. If your operations map to other domains that you understand (also if they are abstract domains in your imagination), you can understand why the operations work like they do, and you know why you have to solve them the way you do it.
Maybe the equations don't have a specific meaning per se; but if they don't have any meaning for you, there is no way you understand what you are doing when you solve them.
For example:
a x = b (text) --> x is unknown, it is the right one if f(x) = a x equals f'(x) = b; both functions are programs you can compute and play with
from there you go mechanically to:
x = b/a (text) --> x is unknown, it is the right one if f(x) = x equals f'(x) = b/a
while in the first step it was hard to tell much about x, now we can see that it is trivial to guess which is the right x; x must be b/a
This is the first mapping from the domain of symbols to another domain that I could think of. There must be more natural mappings that can be used like this.
Seriously: there is something to be said for the claim that mathematics is the search for beautiful tautologies.
Like javelin throwing vs hunting, running vs outrunning a predator, or painting vs making a portrait using paint because that is the only way to do it, there is a difference between being doing math and using math to reach a goal.
I think it would be very nice if one managed to give kids, even those with little mathematical talents, a glimpse of that difference.