In this chapter, we learn that the Shangqing sect's strongest cultivation system is the use of the snow lotuses, which are the most powerful energy source in the universe. In order to get the most out of them, the sect needs to cultivate them. In other words, they need to make sure that they have the right amount of food, water, and other nutrients to cultivate the lotuses. This is why the sect uses the skywatch to monitor the movement of the sky. The skywatch can also be used to track the movements of other heavenly beings, such as the moon, the stars, and even the devil. The sect also needs to know about the existence of the phantom sky, so that they can use it to cultivate themselves.