Zheng Qing had never imagined that he would have any connection with the word 'forbidden curse'.
Of course, in Old Yao's philosophy class, he had briefly understood the origin of forbidden curses — because this world is infinitely vast and hard to describe, wizards used dimensional formulas to make it convergent. Through convergence, the characteristics of the world were intensified, which ultimately led to the creation of forbidden curses — this was the only clear understanding Zheng Qing had of forbidden curses.
As to rumors that the First University stored four forbidden curses, demons concealed one or two, and the school had a mysterious department specifically to manage forbidden curses and so on, they were so speculative that they were hardly credible, not amounting to any real understanding at all.