Thai society has long been intertwined with the beliefs and teachings of ancestors. One prohibition many have heard since childhood is "Don't tell dreams while eating." This often raises the question of whether this prohibition is merely a mystical superstition or actually a clever teaching embedding scientific and behavioral reasons.
From the perspective of belief and omens, information from the book “Ancient Prohibitions” (by Udomporn Amorntham) states that ancestors often taught not to tell dreams, especially "bad dreams," while eating because it was believed that speaking about misfortune while swallowing food was like bringing bad things into the body, which might cause the bad dreams to come true and bring trouble to oneself.
From a modern and rational perspective, this prohibition is not just a scare tactic or mere superstition to fool children but is a subtle teaching by people in the past who wanted to teach etiquette and prevent dangers from behavior at the dining table, as follows:
According to human physiology, the esophagus and windpipe are adjacent, with the "epiglottis" acting as a valve that opens and closes. When chewing and swallowing, the epiglottis closes over the windpipe to prevent food from entering. However, if one talks, tells stories, or laughs while the mouth is full, the epiglottis may malfunction, causing food to enter the windpipe and trigger choking, coughing, or in severe cases, blockage of the airway that can be life-threatening.
Telling dreams often requires vivid storytelling, which may cause food particles to fly into others' plates or create loud noises disturbing the meal atmosphere. The prohibition against lengthy storytelling teaches basic social manners to ensure polite and respectful dining together.
Thai eating culture values calmness and mindfulness. Focusing on the food not only aids digestion but allows diners to fully enjoy the flavors. Distracting oneself by recounting dreams can scatter attention and reduce concentration during meals.
The belief that "one must not tell dreams while eating" is therefore not an irrational lesson made up to deceive children, but a harmonious blend of psychological belief with health care principles and social etiquette. It reflects the wisdom of ancestors who aimed to protect their families from everyday dangers effectively.