According to tradition, the Pret – the hungry ghosts – are allowed out of Hell for 15 days, culminating in Wan Sart Thai.
People traditionally bring food, fruit, drinks and desserts such as Khanom Tien, Kanom Tom, Khaopong, Kanom Ba and especially Khanom La – a crispy dessert made from rice flour and sugar, which is the highlight of all of the desserts for this festival.
The desserts are small because the Pret are believed to have have very small mouths.
The desserts are also made in shapes that suggest clothing or accessories for the Pret to wear.
Temples set up a Lan Pret – a Hungry Ghost Field – for the occasion, with long tables for people to lay out desserts they have brought. The food is blessed by monks and then, when it has been offered to the Pret, it may be taken home to bring good fortune.