In the final period Han Li spent in the Guanghan Realm, he did not cultivate or prepare to break through any bottlenecks. Instead, he found a desolate mountain to utilize the newly acquired Golden Seal Script to comprehend the secret of the Spirit Refinement Technique.
In the previous relic's restrictive formations, even with that mysterious energy coursing through him, he could not break through to the Joined Bodies Realm. Naturally, it would be even less possible to break through bottlenecks using ordinary methods.
After all, advancing two levels consecutively requires both the refinement of mana and a tempering of the mind over a long period before truly grasping the opportunity for a breakthrough into the Joined Bodies Realm.
