गुणेषु यत्नः पुरुषेण कार्यः
न किंचिदप्राप्यतमं गुणानाम् ।
One must strive to collect as many good qualities as possible. This is not easy and will involve lot of effort. But one must persevere. Look what the moon has achieved. By the virtue of all his good qualities, he is able to secure a place on top of the head of Lord Shiva (who by himself is insurmountable).