This statement made Xu Huo furrow his brows. However, the younger Xu Huo, immersed in his memories, showed little reaction and calmly accepted Doctor Zhang's explanation.
Chang Bei asked Doctor Zhang how he had restored the pen to its original state, and Xiao Liang, along with several other children, said they wanted to learn as well.
Doctor Zhang looked at them with affection in his eyes and said gently, "Everything and everyone has their own trajectory. People move from birth to death, and things go from inception to extinction. Trajectories can typically be seen as a straight line—much like the shape of a pen."
As he spoke, he once again demonstrated splitting the pen into two segments and then merging them together.
"Can trajectories be altered?" Chang Bei asked.
Doctor Zhang gave an affirmative reply. Xiao Liang followed up, "Then how can a person's trajectory be changed?"
