Feng Yun looked at Xiao Qi, who was crying, with amusement in his eyes, and said, "If my guesses are correct, there are two types of energy used by ability users."
Wiping his tears, Xiao Qi asked curiously, "What energy?"
After finishing the water, Feng Yun felt the overwhelming negative emotions in his mind lessen. He pointed at the soldiers and replied, "The energy they use and the energy we use to control our space are different."
"How do you know?" Xiao Qi asked again.
Feng Yun thought for a while before explaining, "When I create a space crack, my body feels pain, and I get severe headaches after using up my energy, but my mind is clear, and my emotions are stable. The energy absorbed from the crystals can recover the lost energy and lessen the pain."
"But when I use the boulder to smash the zombies, my body feels nothing. However, overusing space to take out and collect the boulder makes my mind clouded, and negative thoughts surge into my head."
