Only represents personal views. Let me say, my favorite movie is Lyon. Leon is only in the United States to kill people and complete tasks, and that potted flower (I think it is a few leaves, I don't know much about flowers and plants, and I don't know what kind) is Leon's only friend. Leon lives with it, and they are interdependent. Leon also pinned his loneliness and loneliness on the plant, watering it and giving it sunshine, and it didn't say much (the key is that it didn't say anything back). Then I will give you green and a kind of spiritual comfort in return. To put it bluntly, that flower is Lyon's hope and eternal love for this society. So when Martina shows up, Leon will find that he has been a killer for so many years. And the inner feelings about warmth and love have never disappeared with time. Finally, Leon gave Martina the hope of life, and Martina planted Leon's soul on the land. Only in this way can potted flowers take root and sprout better, grow sturdily, and hope and love will not die out. In fact, this is also the continuation of the hope and love that the director wants to express to us. Finally, the lens of the film slowly pulled up, accompanied by the song "The shape of my heart", which really shocked my mood.

These are my personal thoughts after watching several movies. I hope it helps you.