Those who reached forty were qualified enough to start cultivation in the sect. Sixty meant regular. Cultivator in sixty could never get great achievements but just small success. Seventy meant the cultivator would have the opportunity to get great achievements. Above eighty was brilliant. Cultivators above eighty could surely do great in the martial art, and also had the chance to push the limitation of the martial art. Whoever got above eighty would definitely become elders in the sect.
Those who were above ninety were completely suitable for that martial art. Only those who reached ninety would set up a goal aiming at Human Realm Upon Heavens. There were no more than five hundred people in the entire history who had ever reached ninety. A small part of them died before they reached the highest achievement. Most of them were backbones of the sect.