What are the meanings of "eight big pieces" and "eight small pieces" in China's traditional viewpoint?

Eight big pieces and eight small pieces. A catty of eight different kinds of cakes is called "Daba", which is generally the most suitable for giving gifts. Small eight pieces are also eight varieties, and sixteen small pieces are divided into one catty. As a gift, eight pieces are the main ones, with high quality. The names of eight different cakes are as follows: 1. Rice cat cake, 2. Big roll of cake, 3. Big cake, 4. Butterfly paper, 5. Picture cake, 6. Chicken oil cake, 7. Zhuangyuan cake, 8. Seven stars, Dianzi. The small eight pieces are one size smaller than the big eight pieces: one, fruit pie, two, small roll crisp, three, DOG crisp, four, chicken oil cake, five, small screw crisp, six, salted preserves, seven, jujube flowers, eight, pit noodles. The last four are the most popular among children. Especially jujube flowers, twisted into petals with jujube paste, very beautiful ~