As the devouring vines pierced the walls of the essence stone mine, the essence stones stuck inside the walls started to turn into dust, and all of their world essence was absorbed by the vines.
Evan's Primordial Monarch Core was already absorbing the world essence from the surroundings like a black hole. With the addition of the world essence provided by the devouring vines, Evan felt as if his core was facing a tsunami of World Essence. At first, he found it hard to handle the amount of World Essence his core was absorbing, but after a few hours, he became familiar with the absorbing process.
As time passed, Evan realized that the devouring vines were not only absorbing the world essence from the essence stones, but even the walls of the mine were filled with rich world essence, and he was absorbing the world essence of the walls as well.