What is a soul, how do you measure and quantify it? If you can’t, how would you know whether the grammar mistakes change the soul? I’ve heard people say they ke

What is a soul, how do you measure and quantify it? If you can’t, how would you know whether the grammar mistakes change the soul? I’ve heard people say they keep the grammar mistakes in to prove the existence of a soul, so presumably correcting them would alter the soul in some measurable way.