Reincarnation Fragments

Why can't mortals without spiritual roots be able to cultivate immortality? The iron rule in the world of immortality: spiritual roots determine qualifications, and qualifications determine destiny. Without spiritual roots, it is impossible to even draw Qi into the body. However, a fragment of a book that was denounced as "evil skill" suggested another way - not relying on spiritual energy, but relying on "karma" cultivation. Every breakthrough is an experience in the illusion of "reincarnation". Every journey reshapes the bones.