This view of the soul is essential for treatment

Only a physician whose doctrine describes the soul in this way can give treatment that brings happiness: if the soul were wholly permanent no treatment would be needed, and if wholly momentary there would be no one to treat, so the syādvāda (anekānta) view backed by reason and scripture must be adopted. Verse 9 adds that the person, disease, medicine and time must likewise be held valid only in some relative respect, never absolutely.