This article attemps to describe a dance which is considered as a sacred knowledge among classical dancers in Thailand. This is the reflection of their unique idea, wai khru, which means showing respect to the teacher and the ritual based on this idea. In Thailand wai khru is generally practised wherever they have a person to be recognized as a teacher in their own comunities. In these days, however, under the influence of the modernization, the idea that the teacher has a special power and knowledge respected by his/ her students/ disciples is gradually fading. Even in these currents of modern times, in Thailand there are still some communities which strictly continue to practice wai khru. As one example of those communities, we may consid...