Soul cultivation, as the name suggests, focuses on cultivating one's own soul. Only when the soul can leave the body without fearing the exposure to the True Sun Fire is one considered to have entered the gateway. Ordinary cultivators and demons cultivate their physical bodies. However, the founder of soul cultivation took a unique path, daringly abandoning the physical body to focus solely on the path of the Divine Soul. This way, no matter how poor one's physical aptitude is, it will no longer hinder the progress of cultivation.
Moreover, a soul cultivator uses the soul as their identity and the body as a shell, even capable of detaching from physical restraints to possess others, steal their memories, and use their Divine Skills, making it extremely secretive and powerful.