From the top of your swing, mentally draw a straight line from your right index finger to a point on the ground in front of and just outside the center of the ball. Take your karate chop/lag pressure all the way down the line to that spot with quiet hands. The point you select to aim at really depends on the club selection and your hand speed. So experiment with it and move the point backwards or forwards until you locate what is right for you.
It might help if, on the practise tee, a tee peg is put into the ground at this spot as a visual aid.
If the tee peg is obliterated by the swing, then the "aiming point" has been hit.