Whether it's Tokyo or Paris, Chinese tourists have become the biggest source of tourism revenue worldwide, and this trend is set to continue.

By 2025, Chinese travelers will spend more on their overseas trips than the sum of their counterparts from Germany, the UK and France, a recent report by consultancy Oxford Economics and Visa found. By then, China's millennials, who were born and grew up in relatively better-off families and are more individualistic, will make up a big part of the international travel market.

As China, the most populous country, has been trying hard to embrace the increasingly open and globalized world, the trend of increasing numbers of  Chinese people taking outbound trips will bring profound and far-reaching influences to the world and the country itself.

Chinese tourists used to be widely known for their endless desire for luxury goods such as watches, handbags and jewelry, but they are becoming more rational in their spending choices, shifting their attention to better travel experiences such as comfortable hotels and local dining and relaxation opportunities.

Reuters reported that in March, spending on luxury goods by outbound Chinese shoppers fell for the first time since 2010. In fact, the spending habits of Chinese consumers have to some extent guided the services sector and their shift in interest will exert a huge impact on the global economy.

Besides, more attainable travel overseas enables Chinese tourists, young and old, to  learn more about the world and their homeland from a different perspective. This will play a critical role in pushing forward the globalization process and facilitating China's exchanges with the rest of the world.

When touring Nepal and Malaysia, I realized how important it is for a country to stay stable and be devoted to promoting economic development and infrastructure and improving its citizens' well-being effectively. And during my short stays in Japan and Singapore, I began to understand how many more efforts the Chinese government and people need to make to advance China into a developed country that has well-behaved citizens, clean and efficient governance and order-based society.

When hundreds of thousands of young people like me are able to see the outside world and reflect upon the differences with China, their thoughts and ideas will subtly affect their daily work and life, which in the long-run will have a role in deciding China's future direction.

The world can be seen in a grain of sand. But it is better to see it with one's own eyes.

As an increasing number of Chinese go overseas, they will bring not only more cash, but more extensive changes to the world.