"it's common practice to learn from each other.". Folk custom is the most inherited and stable level in the cultural system, and it is also the most colorful part. Since ancient times, there have been multiple ethnic groups in Hakka areas, and more than a dozen ethnic groups have lived and multiplied here, developing unique Hakka folk customs. For thousands of years, Hakkas have gathered strength in the colorful folk culture, created the economic prosperity of Bobai, maintained the stability of Bobai society and promoted the prosperity of Bobai culture.

With the development of history, folk customs can continue culture, maintain spiritual home and provide spiritual motivation and ideological guarantee for building a harmonious society. Contemporary Bobai, with vigorous economic development, intensified social changes, strong impact from foreign cultures and complicated rules, people often lack a sense of security and stability in the modern life world and are at a loss. Traditional folk customs can bring intimacy and familiarity, relieve depression, enhance self-confidence and guard the spiritual home. For example, Hakka folk songs sing: "Go out and sing folk songs in three steps, and often sing folk songs for more than 1 years old. Men, women and children sing together until everyone is happy." In the eyes of folk songs, folk songs mean singing happily. Everyone either sings beautiful mountains and rivers, praises sweet love, or sings hard work, or yearns for a better life. People listen to Hakka folk songs, and get rid of the fetters of complicated daily life in vivid songs, and are happy. This is a powerful force of folk customs. It embraces life itself with the primitive vitality of villagers and satisfies people's spiritual life, which brings stability and happiness.

Folk customs bring cultural identity and help people establish a stable social connection to adapt to the ever-changing modern life. There is a Hakka proverb called "It is better to lose one's ancestral fields than to forget one's ancestral words". When folk songs are sung, they have the communication function of "meeting friends with songs". For folk songs in Hakka settlements, in folk song fields, everyone is not only a singer friend, but also has the same hobby, and everyone is the same age and has the same language. For the old folk songs in the Hakka mixed area, the folk songs can satisfy the Hakka's mother tongue complex to the greatest extent. Everyone speaks Hakka dialect and has the same cultural recollection. They exchange all kinds of information and current situation with each other cordially and enthusiastically to enhance their feelings and understanding. Moreover, after the reform and opening up, the Hakka regional government departments extended it as a "diplomatic business card" to "public communication", and through Hakka folk songs, a traditional "Amish" art, the hearts of Hakka people at home and abroad were linked together. At a deeper level, this is the turn of Hakka identity consciousness from the political and economic level to the cultural level. The strong and rich harmonious factors of folk customs are conducive to social communication, which is the foundation for folk customs to maintain people's hearts and maintain stability.

Folklore is also an important source of developing cultural industries. Under the background of economic globalization, the locality and diversity of culture have been paid more and more attention. As an important intangible cultural heritage of mankind, folk culture has become more and more prominent. Bobai realized the important role of culture in economic development earlier, and also realized that the development of modern cultural industry needs to find inexhaustible cultural resources from profound folk culture. Hakka folk custom has broad development and utilization value and development space, and it can also bring huge economic effects to Bobai. It is with this cultural consciousness that Hakka people have created many cultural products with modern Hakka style and Bobai style, such as Bobai Hakka Culture Festival, Bobai Tea-picking Drama and Bobai Acrobatic Troupe, which has promoted the rapid development of Bobai's cultural industry. Facts have proved that the more things with local characteristics, the more development value, the more popular they are with the public, and the more beneficial they are to the establishment of a harmonious cultural industry.

It can be seen that folk customs are needed by contemporary Bobai people because of their great significance in building a harmonious society. Although the inheritors, participants, inheritance methods and functions have changed, and successors need to be cultivated urgently, with the upsurge of intangible cultural heritage protection and inheritance, Hakka folk songs are in the sunset. The case of the revival of Hakka folk songs shows that the local culture can be performed brilliantly in cities and towns in the process of modernization, and modern society has opened up a broader stage for traditional folk customs. Folklore can meet the needs of contemporary people, so it can be "unconsciously inherited" and "consciously invented", which is the result of self-adjustment of contemporary folk culture.

Folklore is like a flowing river, which continues Hakka culture and shows cultural diversity day and night. Nowadays, the aging of participants in folk activities is a common phenomenon. Fortunately, the protection, inheritance and development of folk customs have become the knowledge of the government, scholars, inheritors, people, cultural industry businessmen and mass media. Depending on the cultural consciousness of Baizhou people, just as Hakka folk songs sing a harmonious movement, folk culture is continuing Hakka culture, building Bobai people's spiritual home, enriching Bobai's cultural industry, improving Bobai's cultural competitiveness and becoming an important factor in building a harmonious Bobai.