I don't think playing comes naturally, without thinking about what you are doing. Very often I find myself planning a musical phrase, stroke by stroke. When will I lift a finger? Which finger will I fret this note with? Which finger will I pluck this string with? The object is "economy of motion", not making extra motions that are not necessary. Economy of motion actually makes playing easier, but you have to plan it very deliberately, until it becomes second nature. That requires looking at your hands, while you play a phrase slowly, note by note.