After Qing Yi and Little Seven explained, Sima You Yue finally understood why the Tree of Souls was imprisoned here and why they were so anxious.
It turned out that the Tree of Souls was free like they were in the past, but ten thousand years ago, some people had plotted against him and used a seal on the ground all around this palace, trapping him inside here.
Being unable to leave this soil wasn't a big deal for vegetative beasts, but the seal was a dark type. It slowly stripped the soil of nutrients and the Tree of Souls was no longer able to receive any nutrients.
Also, the dark energy on the seal was even eroding the inner body of the Tree of Souls, sapping it of its strength.
"Why? If Elder White dies, then the Sage Pavilion would no longer be able to obtain another power, right?" Sima You Yue asked.