In Buddhist teaching, ungood knowledge (Ah Vicha) or vile knowledge (Derachan Vicha) refers to those areas of knowledge that are suitable for harming other living beings. Both the Pahuyuth and the Saiyasart as well as components of the traditional Free-Warrior medicine are in many places considered “Ah Vicha” or “Derachan Vicha”.
Origin of the white color
The combat knowledge of Pahuyuth is traditionally compared to a pure white cloth, which only discolors by its use.
To hint Pahuyuth intermediate students to the difference between knowledge and its usefulness or use, they wear white belts.
Middle school students refine their basic techniques and begin to develop their own fighting style, in particular by passing on and imparting their acquired knowledge to younger students.
Origin of the yellow color
In former times, Pahuyuth students had to apply to a teacher, for example by working as temple novices (Dek Wat, church child). Initially, each of these students was only taken in as probationary student to first examine their character and ideas.
The ancient teachers gave them an insight into the fighting knowledge (e.g. through fitness exercises), but no actual fighting techniques to prevent possible abuse.
It was only at a later stage that the teacher decided whether and to what extent it was possible for him to impart the necessary knowledge to the novice and to accept him as a full-fledged student.
The yellow-green belt is a special belt for admitted students who have not yet reached the age of fourteen yet.
Yellow-green belts have all the rights and obligations of a green belt. Only a short yellow stripe at the end of the green belt indicates their special status. At the age of fourteen, the yellow stripe is omitted.