The ritual offerings made to the deities hold immense spiritual significance for the people of Yen Lac. These are the finest products of agricultural production, carefully selected with reverence. Besides incense, flowers, fruits, candles, tobacco, alcohol and joss paper, a special ritual offering made to the deities on the opening day of the festival (the 2nd of June) is a roasted pig. The savory offerings for the deity worship ceremony (on the 3rd of June) include a plate of sticky rice, a fried carp, a pig’s head, and a castrated rooster.

In the past, the main festival days’ offerings typically included joss paper, betel and alcohol, fruits, square and round sticky rice cake, a plate of sticky rice, a black pig’s head, truncated cone of sticky rice, black pork, goat meat, chicken with sticky rice, and vegetarian dishes. These offerings were considered luxurious and refined, presented to worship the saints and deities, aligning with the Eastern philosophy of Yin and Yang balance. The five fruits represent the five elements: Metal, Wood, Water, Fire, Earth; the square and round rice cakes symbolize heaven (Yang) and earth (Yin); white sticky rice (Yang) – black pork (Yin)… According to principle, the harmonious combination of Yin and Yang elements is key to vitality and prosperity.