We ordinary people, who often know only a little, are angry with me for being slow. Read less, or be arrogant, and you will be as full as an ox. In other words, we often learn very little, know very little, and start to be complacent and complacent, just like holding on to the footprints of cattle in the mud. There is actually too little water in it, but we feel that there is too much water to know the vastness of the sea. Like a mouse with something in its hand, it feels too much. In fact, we know that rats can't take too many things. It is also a metaphor for shortsightedness and lack of wisdom.
The sea of wisdom is vast and unpredictable. This refers to the vastness of Buddha's heart. You can't know all the boundless Buddha's heart, and it's hard to think about it, but you are obsessed with your own little ideas. It is easy to produce limited and one-sided small ideas, and it is impossible to predict the defamation cause of boundless Buddha's heart.
Cow's drinking water becomes milk, and snake's drinking water becomes poison. If we learn Buddhism with wisdom, we can put down our little knowledge and all our poisonous habits, and we will certainly achieve the fruit of Bodhi.