The Vietnamese word "cầm tinh" refers to the concept of being born under the influence or auspices of one of the twelve animals of the Vietnamese zodiac. Each year in the lunar calendar is associated with a specific animal, and people often identify with the characteristics of the animal corresponding to the year they were born.
In summary, "cầm tinh" is an important cultural concept in Vietnam that allows people to connect their identity with traditional beliefs about personality and destiny based on the animal zodiac signs.