Wai khru

What it is

Wai khru is a Thai way of honouring teachers. Students take part in a formal ceremony where they thank the person who instructs them and openly accept the bond of teacher and pupil. Most schools in Thailand hold one near the beginning of the school year. The same name covers the older rites kept by performers and healers. Those who study Thai dance, classical music, Muay Thai, astrology or traditional massage hold a wai khru when they begin, and again before they perform.

Origins and history

People trace the rite to old spirit beliefs, shaped later by Brahmin ideas arriving from India. That mixture shows in what is honoured during the ceremonies: dance and music name Ishvara, while massage names Shivaga Komarpaj and Narayana alongside other Hindu deities. For centuries it stayed a folk practice handed down between generations rather than a fixed institution. The version now common in schools took shape at Triam Udom Suksa School in 1941, when the sarabhañña chant used there was composed by Thanpuying Dussadee Malakul Na Ayutthaya. Her husband, ML Pin Malakul, led the school at the time.

How schools keep it

Where Theravada Buddhism is the official religion, the day opens with a Buddhist devotion. Students then say a chant that thanks their teachers and asks a blessing on their studies. Representatives chosen from each class carry up trays, called phan, holding flowers, candles and joss sticks. The head of the school usually speaks afterwards, offering guidance for the year ahead, and many schools hand out awards and honours at the same gathering. It is normally held soon after the first term begins, on a Thursday, because Thursday belongs to Brihaspati, the Vedic god of wisdom and of teachers.

Music, dance and fighting

Thai classical ensembles hold their own wai khru once a year, and again when a new player starts. The evening before or the morning of, Buddhist rites may come first: monks are invited to make merit and are given alms. An altar stands on one side, the instruments on the other, and the taphon drum sits highest as the seat of Phra Prakhonthap, grand-teacher of music. Masks of Bharata Muni, Pragondharba, Vishvakarman, Pancasikha and Biraba are shown, sometimes with images of Shiva, Vishnu, Brahma and Ganesha. A teacher dressed in white leads, the ensemble plays the na phat, and lustral water and white paste are shared. Muay Thai fighters perform wai khru ram muay before a bout.

Healing and change

Traditional massage and medicine keep wai khru as a central practice. Healers thank each generation of teachers in their line, working back from those still living to Jīvaka Komārabhacca, the doctor remembered in the Pāli Canon. Chants are said in Pāli, Sanskrit and Thai, often with passages that honour the Buddha, and deities, rishi and spirits are acknowledged too. A healer may hold the rite privately, or a training school may host it as a large community event. Some historians, among them Nidhi Eoseewong and Sujit Wongthes, argue that today's yearly school version has drifted from its spirit-worship past and now stresses the rank of teachers over students.

How Wai khru is kept

Participants gather, usually on a Thursday. Where Theravada Buddhism is the religion of the institution, a Buddhist devotion opens the ceremony. Students then recite a chant of thanks and ask for a blessing on their studies. Class representatives carry in pedestalled trays with flowers, candles and joss sticks and present them to the teachers. The head teacher gives a short address, and some schools add awards. In music and dance the sequence runs longer: monks may be invited first, a presiding teacher in white leads the invocations, the na phat is played, food is offered, and lustral water and white paste are applied before the khrop khru initiation.

When and where

In schools it falls shortly after the first term of the year begins, and almost always on a Thursday, the day linked to Brihaspati, the Vedic god of wisdom and teachers. Ensembles hold theirs once a year on the same weekday, and again at the moment a newcomer begins to learn. Healers stage it as their own schedule allows.

It is kept throughout Thailand, above all in the country's schools, where most pupils meet it each year. The older forms live where Thai classical music and dance are taught, in Muay Thai gyms and rings, and among teachers of traditional massage and medicine. Professional pi phat ensembles and amateur groups attached to schools and universities also hold their own.

What Wai khru means

Each item on the offering tray carries a meaning. Ixora flowers, closed into pointed buds, stand for a sharp mind. Bermuda grass, called ya phraek, spreads quickly, and stands for persistence and a wish to keep learning. Rice puffed by heat, khao tok, stands for self-discipline. Eggplant flowers bend towards the ground as fruit forms, and stand for respect and humility. Underneath all of it lies gratitude: the ceremony joins a learner to a line of teachers, and, in the older arts, to the gods who guard the craft.

Questions people ask about Wai khru

See also

Spirit houseA small roofed shrine on a pillar, kept in homes and villages across Southeast Asia to honour protective spirits.Yi PengA northern Thai Buddhist festival of sky lanterns, clay lamps and temple sermonsDouble Ninth FestivalAn autumn festival of mountain walks, chrysanthemum wine and ancestor remembranceMak yongA dance-drama of Kelantan and Patani, told in song, music and improvised speech

Good reading and sources

• Wai khru on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos and video
• Wikidata recordOpen data

It may contain mistakes. Traditions differ from one family, village and community to the next, and the people who keep them know them best. If something is wrong, tell us. Last refreshed 2026-10-05.