The mind is an instrument. Some people play it well and some don't. Also fields - Brilliant, nobel prize winning physicist / tone deaf
Although I think that is a terrible metaphor, I will run with it to the extent of saying that like any instrument, the more you practice the better you get.
Of course, there are some inherent limitations to the instrument itself; not everyone is born with a Hamburg Steinway, but then again not everyone who is born with a Hamburg Steinway learns to play it well.