Despite his great ability, it still took Zhang Tie over one hour to complete the enlightenment for his sons.
After Zhang Tie moved his hand away from Zhang Chengpei's head for quite a while, Zhang Chenglei, Zhang Chengting and Zhang Chengpei opened their eyes one after another. They felt too many new things in their mind; especially Zhang Tie's gnosis about cultivation base, which was too enormous and profound for them. Even if the gnosis had been enlightened to their mind sea, they could only sense it faintly. Before turning it into their own gnosis, they needed further cultivation by breaking some barriers. Some secret methods were just seeds for them, which couldn't be absorbed until they reached higher levels.