It is a traditional snack in Guilin. They are usually eaten at happy events to represent best wishes and blessings for a happy life. The two words of the Chinese fa gao (sponge cake) has the same sound as another words that mean growing taller or becoming higher, which again has the deeper meaning of becoming more successful and prosperous. The main material of the sponge cake is sticky rice and brown sugar. They are soft and delicious, with a pleasant fragrance.