Under Li Yao's teaching, Tang Ka spent the whole night practicing the tricks to control his heartbeat, his breath, and even his brainwaves on his bed.
Li Yao told him that the key point to hide his soul without exposing himself was to imagine that he was frozen magma that was still burning inside or a rock under a waterfall that was still hard even though all its edges had been worn away.
When the dawn came and horns were blown in the camp to wake the students hard, Tang Ka finally heard his heartbeat and the sound of his blood in the absolute darkness.
It was a very amazing feeling. It was like his shell and his thoughts were completely separated. Nobody how active and excited his mind was, his body could remain inexpressive and indifferent with absolutely the same heartbeat and breath.
