The fourth physical body: a life level of 10,000-fold.
If we categorized the first four physical bodies uniformly, they would fall under the universe-level Special Life Form category.
The upper limit of a universe-level physical body was 10,000-fold, and the lower limit was one time.
For ordinary human cultivators, adulthood represented a life level of one time. To increase this required postnatal effort, but no matter how much effort was exerted, raising the life level of the physical body to 10-fold was typically the limit.
Further enhancements mainly relied on treasures.
For instance, the entire body of a Special Life Form was a treasure. The simplest and most straightforward method was to use the blood of a Special Life Form as a reference, dilute it, and merge it with one's physical body.
There were many such methods. For example, in other races, the life genes of the demon race started at around three times, and refining demon cores could also increase it.
