Does anyone know what is the main point of "Zi Yuan Tactics" in "Outstanding Works of the 13th New Concept Composition Award"? Be specific.

Shangguanqi's relationship with his father.

Attention is not incest! She is the reincarnation of her mother, who died while giving birth to her, and her father sent her body away on a bamboo raft and never came back ... She has been living with her grandfather. One of the characters, a painter named Ji, liked his mother in those days, but because her mother didn't marry him, she decided to marry Shangguanqi when she grew up, but Shangguanqi never got married. Her grandfather told her that there is a person who is the only thrill (that is, her father), and her parents had unfinished feelings in their last lives, so they will continue in this life. Later, the painter finally gave up, got married and gave birth to a son.

When Shangguan was seventy or twenty years old, the painter asked her who the person in the painting was, and she understood that this boy was the reincarnation of her father. So I understand that it is impossible to continue the frontier in this life, and I decide to continue it in the next life. ...

This is just a story.