1. From the objective aspect, we are warned to rely on the laws of nature. This manifests itself in the use of the principle of struggle between things. The principle of reducing one thing to another is reflected in weeding, which is to use the growth needs of crops to exclude the survival of weeds. Before planting crops, weeds dominate the land. Compared with other weak species, weeds are a powerful subject. They hold the right to speak and survive here. And when it is ruthlessly plowed away, compared to the protected and nurtured crops, the young grass is fragile and can only serve as a foil for the crops, a weak and dispensable object. Under the suppression of crops, the living space is restricted, and sunlight, air, moisture, and nutrients are all missing. It is no longer possible to thrive and become the master here again.

2. On the subjective side, everyone is warned that all actions must have a clear purpose. Plant crops and then remove weeds. The pros and cons are clear and the purpose is clear. When weeds are overgrown, crops are missing, or both coexist, it is difficult to determine the purpose of weeding. Before planting crops, weeds must be removed, but weeds are wild and untamable. After shoveling, setting fire, spreading lime, and uprooting, weeds still have the desire and opportunity to emerge. However, the hope that workers gain from crops will turn into a high degree of consciousness and initiative in labor. This makes the purpose of weeding extremely clear. They are motivated to work and will take the initiative to weed without waiting for calls. When weeds sprout from the ground and have not yet grown vigorously, farmers will ruthlessly pull them out.