According to ancient records, what did the Nile flood bring to the Egyptians?

As the "gift of the Nile" in Egypt, the annual flood of Nile water covers the valley with a thick layer of silt, which makes the land in the valley extremely fertile and crops can be harvested three times a year. According to the ancient Greek book, "farmers there only need to wait for the river to overflow into the fields for irrigation, and then return to the riverbed after irrigation." Then everyone scatters the seeds on their own land, let the pigs step into these seeds, and then wait for the harvest. " In ancient Egypt, agriculture has always been the most important social and economic foundation. In such a unique natural environment and natural conditions, it is no wonder that the history of ancient Egypt is relatively simple.