After the waitress brought the Koppies and left the place, the professor continued, "As I was saying, the first thing you need to learn about is the eye contact technique, cultivators called them 'murderous gaze', and a few other names, but in true, it's a mind technique that they developed unconsciously, it was a natural phenomenon for them as they grew stronger, and sometimes it was troublesome for them, and instead of learning how to activate it, they had to learn how to not activate it, that's how strong they were back at their peak"
"So you say that they had to control to avoid using it? While we need to learn how to activate it?"
"Correct. That's why I keep telling you they were like gods. They were truly strong, something we can only imagine."