Yuan Ming was well aware that if it weren't for his cultivation of the Nine Elements Formula, his progress with his four spiritual roots would have been considerably slower.

The reason was that after entering the Foundation Establishment stage, although the speed of absorbing spiritual energy increased, the amount of spiritual energy needed for cultivation grew even more.

He estimated that as his cultivation improved, this situation would become increasingly pronounced.

In light of this, to enhance his cultivation speed as much as possible, it seemed he would have to rely on elixirs and spiritual incense for assistance.