Kai Syaoran immediately went on to choose an art, it was called the 'Cirrus Cloud Movement art '.This art was used to fly by low-level cultivators. The art was simple enough, all one had to do was condense tiny ice crystals to form a cloud that they would then stand on, or sit on and fly through the endless sky. Flying had always been the dream of humans and whenever they saw flying demonic beasts, their envy spurred them on to create more and more ways to escape the ground. The other reason why humans desired flight so much was because of a single word, status.
Humans felt themselves superior to the other living intelligent creatures of the world. Then how could they bear seeing weak birds fly over their heads day in and day out? Of course, they could not.
Kai Syaoran just wanted the technique in preparation for his escape.