It's not the skill, it's the mind.
Take any skill.
Archery, oil painting, skiing, tight rope walking, public speaking or engineering.
You will have known a lot of masters who mastered the craft to the pinnacle.
What’s remarkably striking about them is that they are not anything like “remarkable” or “striking”. They look like and act like most of us. Heck, some are more modest than a guy selling pizzas.
Then what’s the miracle you think that makes them so damn good at their art/skill?
The answer actually is in something that you can’t touch or feel. Their Mind.
Focus, passion, dedication, perseverance and fearlessness. These are what made them what they are today.
Not the skill, it’s the mind that they learnt to master effectively.