Through Ye Gong and Diego Jacobs, along with four others, Yusuf Zuck and his group gradually came to understand the Element World, and an embryonic image of the Element World began to take shape in their minds.
Of course, although these four had some knowledge of the secret affairs of the Element World, they had never actually been there themselves; thus, the information they possessed was passed down from higher planes.
After sitting under the Sky Reaching Ancient Tree and talking through the night with everyone, Yusuf Zuck found a secluded spot the next day, took out the Purple Light Sword, and began to repeat yesterday's actions, drop after drop of the dew of merit was dripped onto it.
However, after another day passed, Yusuf Zuck was completely drained, feeling as if he had been hollowed out. The Sword Spirit within the Purple Light Sword still hadn't emerged, as if the sword were a bottomless pit that couldn't be filled no matter how much he fed it.