What is the main purpose of Lao She's creation of Broken Soul Gun?

The main purpose of Lao She's creation of Broken Soul Gun is to show the embarrassing situation of some national traditional cultures in modern civilized society through this work, and it is also a reflection on this national cultural tradition.

On the surface, Broken Soul Gun describes that after the escort agency was replaced by foreign guns in the late Qing Dynasty, the escort agent Sha Zilong had no choice but to dissolve the escort agency. Although his martial arts were high, he had to bow his head in the face of the development of the times and give up teaching his disciple the Five Tigers Soul-Breaking Gun, which made his reputation plummet and gradually be forgotten by everyone. In fact, this is very similar to the society at that time. Traditional culture is being replaced by western material civilization, and many people are at a loss. Faced with such a situation, the author used Sha Zilong's example to sound the alarm for everyone. If you go with the flow, both this country and this nation will only be slowly forgotten.