Day by day, month by month, accumulates to describe accumulation over a long period of time, referring to continuous accumulation day by day. To work hard for a long time means to persevere, persevere, and never stop.

There are famous aphorisms about the accumulation of soil over time, and the accumulation of soil makes a mountain, and the wind and rain make it rise. When water accumulates and forms a deep abyss, dragons emerge. Accumulate good deeds and become virtuous, and the gods will be satisfied and the holy heart will be ready. Therefore, if you don’t accumulate steps, you can’t reach a thousand miles. If you don't accumulate small streams, you won't be able to form a river or a sea. ——"Encouraging Learning" by Xunzi of the pre-Qin Dynasty.

Translation: The accumulation of earth and rocks forms a high mountain, from which wind and rain rise. The water flows together to form an abyss, and dragons emerge from here. Accumulating good deeds develops noble morals, the spirit is elevated, and the state of mind of a saint is acquired. Therefore, there is no way to reach a thousand miles without accumulating one and a half steps.