The most obvious point was that, even in ordinary families in the Desert North, many delicate ornaments and fabrics produced in Da Qian could be seen. On the dressing tables of royal ladies, one could even see skincare products from the south of Da Qian.
And even if a cultivator who doesn't speak the Barbarian Tribe's language came to Desert North, he wouldn't encounter too much communication difficulty. Because the majority of ordinary people in the Barbarian Tribe could speak a few sentences in Da Qian official language with an accent, they could figure out the gist through guessing and with a bit of struggle.
The Desert North Barbarian Tribe had also long abandoned their entirely nomadic lifestyle and developed a unique Desert North breeding and farming system. The tribespeople were mostly scattered across the entire plateau in a dispersed settlement pattern.