All Vietnamese families both rich and poor families in urban or rural area, in mountainous  region or plain, at home and abroad have  ​​altars for worship deities and ancestors. Altar is considered as an important place in the house. For many people, setting up  altar  is not perfunctoriness. For Vietnamese people worship of deities and ancestor is both spirit and ethics so altar is always set up in the most solemn place in the house. In the process of creating culture and dignity, Vietnamese people often dignify filial piety. Any one who is appraised as dutiful son/ daughter will be appreciated very highly by others though he/ she is rich or poor. Anyone who is disrespectful to his/ her parents will be disregarded by others, though he/she is in high place. The worship of ancestor has the great significance on culture, education and spirit. Any Vietnamese family has luxurious furniture but it has not an altar or its altar is not clean, the owner will be considered as unlucky man. For Vietnamese people, altar is spiritual place, when their families have important events they usually burn incenses on altar. In wedding ceremony, the bride and groom burn incense sticks, asking for permission from the ancestors to bless them. Vietnamese people often burn incense sticks on altar when they carry out ground- breaking ceremony or they gain promotion, even they are ill. The altar is considered as the bridge between ancestor in spiritual world and their descendants. The offerings in altar are fruits such as pear, pomegranate, peach, plum, banana, orange, tangerine, apple, grapefruit, persimmon….

The offerings on the altar are not only flesh fruits but also rice, water, wine… all of them show water- rice culture, the respect of people for deities and ancestor and their hope of good crops.