Harvest

The power and supreme treasures were different, and so was the way they were driven.

Only when a particular sequence of the Divine Eye technique was cultivated to perfection could it be used, making it somewhat niche.

After all, not everyone could cultivate the sequence of the Divine Eye to perfection.

This wasn't dependent on one's realm, but rather on the innate gift of comprehension.

For example, back when Wei Jiuxian from the Crimson Eyes Realm only had the Divine Aspect realm, he was already able to cultivate the third sequence of the Divine Eye technique to perfection.

Many True Immortals couldn't achieve this, though there were some who were in the Mahayana stage that could.

The main factor was comprehension.

The other factor was time.