For mortals, those with a Spirit Root are already considered to have a spiritual body.
Even without practicing the Path of Immortal cultivation techniques, just through daily martial arts and exercise, and avoiding severe injuries or illnesses, they often have lifespans exceeding others. Living to eighty or ninety, or even over a hundred, is quite normal.
However, in the Immortal Cultivation World, a Spirit Root is merely the most fundamental element for cultivation.
It's hardly considered a spiritual body at all.
Luo Chen once summarized the talent of cultivators into three major categories.
These are Spirit Root category, Divine Soul category, and Physique category.
Spirit Root category, needless to say, determines the cultivation speed based on quantity, at most classifying into Heavenly Spirit Root, Alternative Spirit Root, and so on.