“Residing in a traditional agricultural country, Vietnamese people have mainly survived on farming. They settled within small villages, social cells with their strict rules and practices.
Normally, each family had a private house. To build a house, people used to dig a bit pit to gather soil for the foundation. Then during the rainy season, the pit would become a pond where family took water for daily use.
Perhaps, because of spending much time in the family pond, people recognized that the water surface was very familiar and romantic, a stage for their creativity.
Pham Hoang Hai, “Traditional Water Puppetry”