All five were transferring spiritual essence to the person in front of them, and due to the consumption by the transfer of spiritual essence, everyone's spiritual essence would be exhausted over time.
Thankfully, Lu Yang had taught the other four the Swallow Heaven Cultivation Method. As they transferred spiritual essence, they would open their mouths wide and swallow the surrounding spiritual essence. The Elder of Passing Skills thought they were bewitched.
The essence transmission was also intended to achieve a state of mutual embeddedness—"you are in me, and I am in you." Lu Yang's spiritual essence was now no longer his own but was from the other four. The situation with the other four was not much different; their spiritual essences were thoroughly blended.
The Elder of Passing Skills did not expect them to enter this state so quickly.
"Now, we begin the third step, practicing combination skills..."
...