Lily can't blossom on the vine. What does it mean to be different from a fish?

The first half of the sentence "Lily can't bloom on vines, and mountain birds are different from fish" means that vines and lilies are not a kind of plant, and lilies can't bloom on vines. The second half of the sentence means that the bird living on the mountain and the fish living in the water belong to the sky, and the other one lives in the water, not in the same environment, but in a different world. What the whole sentence wants to express in feelings is that people who are not from the same world can't be together and can't be forced.

Mountain birds and fish are different roads, and mountains and rivers will never meet again. It means: birds and fish are destined to be two species that will not intersect. Even if we meet by chance, we will not be fellow travelers. After understanding this truth, there is no need to wait for the day of meeting.

Birds and fish, also known as the farthest distance in the world, have dozens of versions on the Internet, but the two versions of Cheng, a poet in Dexing City, Jiangxi Province, have the widest spread and the most far-reaching influence, and are praised by literary friends as the most beautiful poems in the world.

The final result of the story of birds and fish is that birds and fish can't be together. Although they love each other, fish is a fish in the water after all, and birds are birds in the sky after all. The bird left Na Pianhai's territory and never came back. It doesn't know that the fish never swam back to this sea area. They carefully avoided the stories of birds and fish in the past.