Tang Luo observes the four terrified ladies lying feebly on the ground, their fear intensifying, and can't help but shake his head.
Momentum is a real thing; it exerts an oppressive fear that can immobilize people. After reaching the peak of the Mortal Realm and achieving unity of spirit and intent, the pressure only grows stronger.
If you only cross one realm, this momentum merely chills your limbs, shakes your courage, and does not cause substantial harm. Take an example of Tang Luo against a martial artist in the Mortal Realm.
However, an ordinary person facing Tang Luo, with his full momentum, would become stiff all over. If exposed for a long time, it could even damage their courage, and those with faint hearts may be frightened to death.
The courage is the soul's dwelling, practicing martial arts is largely about strengthening the body, but also about fortifying courage.