In the late stages of the Rule Integration Realm, one must gather the 72 fragments within one's soul and condense them into a more refined state.
This state surpasses the scattered fragments of rules and gradually approaches the completion of a secondary rule, somewhat reminiscent of how 108 rule particles might coalesce into a single fragment of rule.
Due to this special state, the essence, energy, spirit, and soul of those in the late stages of the Rule Integration Realm are far stronger than those in the mid-stage.
When one reaches the peak of the late stages of the Rule Integration Realm, with 108 fragments of rule, to break through to the Peak of Rule Integration Realm, one must truly refine these fragments of rules into a complete secondary rule.
The vast majority of cultivators in the late stages of the Rule Integration Realm are stuck at the final step, unable to move forward.