Calligraphy, landscape painting, holding a brush, is it better to hold it higher or shorter?

This is a personal habit. When I didn't learn calligraphy before, I thought my score was higher, but later I learned calligraphy and practiced with my teacher. Now I'm used to a shorter position, probably a lower position. Actually, as long as I write comfortably. If you are uncomfortable with a pen, it may be irresistible.