United like pomegranate seeds

What does the "pomegranate" fruit evoke for you? In China, it's a metaphor that symbolizes the unity of the Chinese nation. Chinese President Xi Jinping has used this metaphor on many occasions, saying "the people of all the 56 ethnic groups remain closely united like the seeds of a pomegranate." As the country celebrates the upcoming National Day, this topic is in the spotlight again. Why does China focus so much on ethnic unity? Is it just wishful thinking or a reality on the ground? What does it mean for people outside of China?