The lonely shadow on the cold river, why should we have known each other before when we meet old friends in the rivers and lakes?

Spring mountains are like daisy, brothers from Shandong are both fallen people from the end of the world.

"A lonely figure on the cold river, an old friend in the rivers and lakes, why should we know each other before when we meet" means: On the cold riverside, there is a lonely figure, like an old friend in the rivers and lakes, why should we ask if we have known each other before when we meet today. On the whole, I am lamenting the original encounter and missing the past. Unfortunately, we are strangers to each other now and there will be no chance again.

"Spring Mountains are like Dai, brothers from Shandong, we are all fallen people in the world" means: Spring mountains are like Dai, brothers from Shandong, we are all fallen people in the world. It expresses the feeling of being wandering in a foreign country and living an unsatisfactory life.