Take your finished piece, which is a huge rectangle it has two very long sides and two short sides. Fold it in half so that the two short sides are face to face. Now you have a fold that is the same size are your short sides, lay it down so you have a fold to your left and the short sides to your right, Now you will sew the TOP, which would be your upper right side. you sew toward your left again ON TOP, DO NOT SEW DOWN THE SHORT SIDES. Does that help ?