Xu Tui held onto the handrail at the bottom of the pool and took a breath of oxygen for himself. He then entered a meditative state and switched to an illusory introspective state.
Under the illusory introspection state, Xu Tui's body lit up with seven blurry spots of light formed by genetic base points.
There were many genetic base points related to underwater survival in the limbs, head, and torso parts.
Xu Tui's previous experience of cultivating the Mountain Formula told him that it was not specific enough. He maintained his illusory introspective state. He let go of the bottom of the pool and sank freely.
While he was sinking, the flickering genetic base points in his body began to change while he was in the illusory introspective state.
Some flickered brighter, while others dimmed a little. Some would even light up in turn.
However, the overall state was reduced.