Dot dyeing technique, the so-called dot dyeing, is to point out the connotation of emotion; The so-called' dyeing' refers to the use of scenery to render and contrast the emotions pointed out. Dot dyeing is a Chinese painting term. When painting, some places are decorated and some places are dyed, so as to draw a harmonious and unified picture. Borrowing classical poetry means that the author points out his will in some places and renders it in some places. First "point", then "dye", and finally fall into emotion.
The ending of How Strong It Feels to Send You Away shows the feeling of sadness and farewell. Ten sentences from "Outside the Wild Temple in Changliu" to "In the Dream of Jinling City" are written in layers of twilight scenes, full of melancholy, and every word is "twilight", which effectively renders parting. At the end, "sighing for parting" once again points out the feeling of parting, and "wandering in the river and sea" expresses the reluctance to friends.