We Bharatiyas have a preconceived notion that what the Westerners do is the best so they have started imitating not only their clothes and lifestyle but also their eating habits. Dessert is another such practice. In the West it is eaten after the meal. However, Ayurveda says that the meal should be commenced with a sweet dish.
Before commencing the ritualistic worship, rice (any other food grain if rice not available) is spread over the seat and then the Idol is placed on it. A fistful or a small mound of rice is used depending on the local custom. The benefit obtained by installing the Idol on rice grains is given ahead.