What skills are used in the last two sentences of "Langtaosha"?

Use exaggeration.

Wave Liu Yuxi

Wan Li sand in the Yellow River, waves scouring the wind from the end of the world.

Now go straight to the Milky Way, to Penny's and Weaver's home.

This quatrain expresses their yearning for a better life in the tone of gold diggers. Tianhe, where cowherd and weaver girl live together, is quiet and beautiful, while gold diggers along the Yellow River are busy in the storm and sediment all day. They went straight to the Milky Way and went to find the Cowherd and the Weaver Girl together, pinning their yearning for a quiet pastoral life. This romantic ideal, poured out in bold oral language, is a simple and straightforward beauty.