The ritual of Shijie in Taoism is a complex practice that involves the concept of "release from the corpse" or simulated death. According to Taoist beliefs, this ritual can help adepts avoid actual death or unpleasant fates in the afterlife by using a substitute object or person to "take" the place of the deceased. The ritual is designed to transform the individual and provide a means for immortality or a better afterlife. It is also seen as a therapeutic practice that creates a sacred healing field to expel disasters and cure diseases. The ritual's performance is highly symbolic and sanctifies the space to protect the practitioner from harm. While the ultimate goal may not be the avoidance of physical death, it certainly provides a means for adepts to achieve a form of spiritual transcendence or a more favorable existence after death. For more detailed information, you can refer to the Wikipedia page on Shijie (Taoism).