The Thord Gathin Festival or Thod Kathin (Thai: ทอดกฐิน) is a traditional Buddhist festival celebrated in Isan (northeast Thailand), Cambodia, and Laos. Colorful parades and offering ceremonies at the end of monks' retreat at local temples. Kathin (Thai: กฐิน) in Thailand (there is also the transcription "gathin" in use) is the name for the robes of an ordained monk.[8] The ceremony of kathina is called Thod Kathin (Thai: ทอดกฐิน). The Thai lunar calendar reckons the day after the 11th full moon as Waning 1, Evening, Moon 11 (Thai: แรม ๑ ค่ำ เดือน ๑๑ Raem 1 Kham Deuan 11 ). The presentation of kathin by the King of Thailand's representative is called The Royal Kathin Ceremony and often has been an occasion for one of Thailand's Royal Barge Processions.
On Ok Phansa Day of the full moon, villagers and city dwellers go to their local temple for prayers and to pay respect to sacred relics. Ok Phansa is also the beginning of a 30-day period of merit-making which affords a special opportunity for prayers to Buddha and for the presentation of gifts to the monks for preserving the faith. This 30-day span of merit making and religious gift giving is referred to as Thord Pha Gathin.
Thord Gathin takes its name from the "laying down" of new robes to the monks. The offering of new, saffron robes to the monks is particularly meritorious and important. Other gifts to the monks may include basic utensils, toiletries, writing materials, and food .
Gift-giving is an act of appreciation and gratitude to the monks. Individuals or community groups (such as a village) may perform them. Many villagers combine efforts by collecting cash donations for the maintenance of their local temple. Such donations are vividly arranged on a "money tree" which looks rather like a colourful Christmas tree bedecked with banknotes as the "foliage". The money tree is ceremoniously paraded to the temple, led by a team of drummers and musicians, with the villagers carrying their own individual gifts on trays bringing up the rear. In this way at Thord Gathin, the lay-people of Thailand reaffirm their faith and, in a joyous fashion, bring gifts to Buddha and his servants.