After Vaan arrived in the depths of the subterranean region where the decomposed tree roots were located, he continued to travel through the earth as he traced the path of the root back to its source.
It was only a single tree root that had decomposed into humus-type soil with time, but it was incredibly thick and long, stretching for several dozen kilometers.
When Vaan thought about how much of the Essence of the Divine Tree of Life was hidden within the soil, he couldn't help but wonder how powerful the Divine Tree of Life was in its prime state.
Given a wisp of its essence could already produce such miraculous effects on barren land, he had a strong feeling that the Divine Tree of Life could have nurtured the life of countless star realms without an issue—had it not been hidden away in the depth of the underground world.