Ancestral altars hold immense significance in a Vietnamese household. This space symbolizes the family’s reverence for deities and ancestors and serves as a place to convey their hopes for a prosperous and happy life. Since ancient times, it is believed that observing phenomena occurring at the altar can foretell auspicious or ominous signs for the family.
Auspicious Signs on the Ancestral Altar
- Butterflies Landing on the Altar
In folk belief, butterflies entering the house and resting on the ancestral altar are considered a good omen. The presence of these butterflies is not something to be feared, and homeowners need not worry.
If you see butterflies flying into your home and perching on the altar, it is deemed extremely fortunate. Folk tradition holds that butterflies act as messengers between the deceased and the living. The metamorphosis of a butterfly, from an unattractive caterpillar to a beautiful winged creature, symbolizes a person’s life journey from birth, through marriage, to death, and finally being laid to rest by loved ones.
Many believe that butterflies represent departed souls who still linger in the mortal realm and wish to visit their families, bringing good fortune.
In reality, butterflies do not cause significant harm when they enter a home. Therefore, it is unnecessary for homeowners to drive them away or cause them any harm.

- Altar Plants Blooming
Some families choose to adorn their ancestral altars with ornamental plants like phát lộc or kim tiền (money plants), believing that these plants attract wealth and prosperity. When these plants sprout new growth or bloom, it signifies positive developments and is considered a fortunate omen for the family. Folk belief holds that when this happens, the family will soon receive good news regarding careers or relationships. Overall, the lives of family members are thought to be filled with joy, happiness, and contentment during this period.
Inauspicious Signs on the Ancestral Altar
- Broken Flower Vase
In the past, it was believed that a broken flower vase on the altar signified impending misfortune. Should this occur, the homeowner should promptly clean and rearrange the altar, offering incense to show reverence to their ancestors and deities, thus appealing for peace and tranquility. Additionally, family members should exercise caution in their movements and financial endeavors.
- Displacement of the Incense Burner
The incense burner holds the most important position on the ancestral altar and should remain fixed in one place. Should it be accidentally moved or displaced, the homeowner must find a way to rectify the situation. The simplest solution is to offer incense and respectfully ask the ancestors and deities for permission to restore the burner to its original position.
- Cracks in the Altar Wall
According to folk belief, cracks appearing on the wall behind the ancestral altar can negatively impact the family’s financial situation. In reality, these cracks indicate a potential safety issue. Homeowners should investigate the cause and implement appropriate solutions.
This information is based on traditional beliefs and is subject to personal interpretation.
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