Visualising a round object-the moon, the sun, or a crystal sphere- can assist me to have meditation in progress. I felt my mind enter the visualized moon and went through the seven bases of the mind. It was still and firmed at the seventh base which was the right path to the Middle Way. At the beginning,it was difficult to keep my mind still at the seventh base, But when I could do it, my mind was enlarged with no boundary . It was unlimited joy.