What do the lyrics of Knife's Impulsive Punishment mean? Is there a story behind it?

The description is about Dolan's first marriage. He was a resident singer at a bar and formed the band Scalpel, and it was during his time performing in Neijiang that he met his first wife, Yang Na.

Yang Na had just ended her first marriage, and when she was most depressed, she met Cailang, and the two of them talked and talked and talked and soon fell in love. Later, she married him and gave birth to their daughter that year. The daughter of the knife Lang originally thought that the happy life will continue.

Back the two were married to a son, should have lived a happy family of three life, but in the daughter was born 40 days later, Yang Na will be because of the knife Lang at the time of the life of hardship, can not see the head to give up this just set up a short time ago, the family. Choose to leave quietly.

Expanded:

In the daughter was born 40 days after a morning, the knife Lang bed but found that his wife disappeared, he walked all over the streets of Neijiang, but did not see his wife's figure, until three months after the knife Lang received a phone call from his wife, the handset came from a cold and brief conversation, "Forgive me, I'm gone, because you will not give me happiness. Because you will not give me happiness."

Originally thought that spring will come soon, but waiting for is still cold winter, the knife Lang hugged the wailing baby, tears, and later, there is this song impulse punishment, describing this section of the wounded feelings that is a complete failure of marriage, when the knife Lang just turned 20 years old, and a divorced woman because of impulse to get married, and the tragic memories left behind.