According to Shuo Wen Jie Zi, "Nian" and "Gu Shu Ye". "Biography of Guliang" also said that "when the grain is ripe, it will be a great year". Even the word "nian" in Oracle Bone Inscriptions is the mature appearance of ears of grain.
Therefore, it can be inferred that "Nian" is a day of harvest and celebration, while Chinese New Year is a celebration and prayer for a bumper year.