To protect the environment and prevent accidents from harming innocents, cultivators from the Myriad Worlds throw their garbage onto the Xuantian Continent... No one cares whether the inhabitants of the Xuantian Continent live or die, or whether they face danger. Cultivation is full of traps. Practice someone else's techniques, and you'll fall into their trap, come under their control, and become their puppet or clone, always at risk of being possessed. You may be forced to provide an endless stream of faith power, and could lose a lifetime's worth of cultivation and spiritual energy at any moment.