1. Poetry: The word "a drop in the ocean" originated from the ancient people's description of the sea and tiny life, expressing the tiny feeling of life, just like a grain of sand in the sea. This word conveys the uniqueness and preciousness of life while expressing the smallness of human beings.

2. Arouse deep thought: A drop in the ocean makes people think about the meaning and value of life, reminding people to realize their own smallness and limitations, so as to cherish life more and pursue their dreams harder.