In Chinese culture, the burning of three incense sticks is traditionally used as an offering to gods, ancestors and other spiritual beings. This practice dates back to the Tang Dynasty (618–907), when it was believed that the smoke from incense could carry people's prayers to heaven. Additionally, in traditional Taoist temples, incense sticks are often burned to symbolize the connection between heaven and earth. Burning three incense sticks is seen as a sign of respect for celestial beings, and it's believed that this practice can help bring peace and harmony into one's life.