In the solitary cave, Yi Yun began circulating the Dragon Emperor Technique. The rich surrounding Yuan Qi immediately began surging toward Yi Yun like he was a whale sucking in water.
Soon, Yi Yun's body formed a Yuan Qi vortex.
Every breath Yi Yun took was the inhaling and exhaling of the Heaven Earth Yuan Qi in the ancient world.
Yi Yun's blood surged and rumbled like a raging river, coursing through his entire body again and again.
Just as great oaks grow from little acorns, Yi Yun was honing his body. As he fortified his foundation, his cultivation level was turning purer and more intricate.
Even without the River of Forgetfulness's water, Yi Yun could have done such a honing of his foundation. But it would have taken too much time. It might have taken decades or even more than a century.