"LÌ XÌ" (LUCKY MONEY) - A CHERISHED CUSTOM IN TRADITIONAL TET HOLIDAY 

The meaning of giving "li xi" in new year day
People always give lucky money to others as a way to express their wish of luck and best things happening to the receivers in Tet. Asian believes that red color is one of the luckiest colors on most occasions, which leads to the fact that lucky money is always covered in red envelopes. Moreover, envelopes are also believed to be the symbol of fortune and are often used to cover the lucky money, so everyone wouldn't know about other's lucky money.
Traditionally, people will clean their houses as Tet approaches in an attempt to "sweep away" any bad luck that has accumulated from the old year. You should never clean on Tet itself.
People will visit relatives and friends during the three days of Tet, and they will also visit temples and shrines. Some may seek to honour their ancestors on this day.
Homes are often decorated for the season. Families will also gather to feast on sumptuous dishes, snacks, and sweets and to start the new year together.