(1) The general idea is: Even a porridge and a meal must be hard-won; Even if it is half a silk, we should also think of the hardships of labor. (2) It embodies the traditional virtues of the Chinese nation. (3) It warns us that socialist modernization is a great cause full of hardships and creativity, and it is even more necessary to vigorously advocate and carry forward this traditional virtue and oppose the bad habits of laziness, luxury and greed.