the ceremony of launching fire boats will usually be performed in the evening before the sunset. Buddhist monks will be invited to chant, give precepts and deliver a sermon. However, the participants must bring joss-sticks and candles to take part in a religious rite. As soon as the sun’s rays disappear, the boats will be lit and launched on the Mekong River to worship Lord Buddha.
At this time, in the middle of the Mekong River, lights in various shapes from the floating boats can be seen from a long distance and this is considered as a significant symbol to uphold Buddhism