via The British Library Asian and African Studies Blog, 15 January 2020: Blog post by Leedom Lefferts in conjunction with the exhibition on Buddhism at the British Library about long, illustrated scrolls in Laos and Northeast Thailand.
Illustrated manuscripts are rare outside major cities, and the usual medium for Buddhist sacred texts is narrow palm leaf manuscripts which are usually not illustrated. Older Northeast Thai-Lao and Lao wat were almost entirely constructed of easily available wood which is not amenable to murals. The oldest illustrated materials now found in Northeast Thai and Lao wat are colored lithographs produced by the S. Thammapakdi company, dating to the early 1900’s, and sets of these prints depicting the lives of the Buddha and of Prince Vessantara are often found mounted on the walls of wooden preaching halls. But the tradition of long portable painted scrolls is arguably earlier, and may have been brought to the Lao through long-standing connections with India.
The ingenuity of the Lao is that they have taken these scrolls, best seen “in motion”, and incorporated them into a two-day merit-making festival, the Bun Phra Wet (the Merit-making Festival for Prince Vessantara, Phra Wet). The first day, muu hom (Lao; Thai, wan ruam), the day of coming together, includes visits by friends and relatives from more distant villages to the celebrating community. More importantly, it culminates in welcoming the return to the community of Prince Vessantara and his family, the Prince embodied in the scroll which the people in procession carry aloft. In this way, the people re-enact the beginning of the story’s climax, when they recognize their belief in the justice of Prince Vessantara’s actions and invite him to return home.
The Vessantara Jataka on the move