What does it mean when a Korean drama ends with August Snow?

Episode 20 (Interlude) In court, the lawyer asked Dong Yu to confirm the situation on the day of the accident: At that time, Dong Yu needed to go to the hospital because his son was ill, and he started the car in a panic. Dongyu denied it, and the court was in an uproar. The lawyer suggested that Dongyu concealed the facts because he was guilty. At this time, Zonghe stood up and pointed out that the defense lawyer had no evidence to infer the situation out of thin air.

The two ministers came to Dongyu's house and saw the orphaned grandson Baolan. They allowed Mixiu to take Baolan home to raise her, but they did not allow Mixiu to testify for Dongyu.

The court opened again, and Meixiu admitted in court that she was the mother of Dongyu's son, proving that Dongyu caused a catastrophe in the panic that day. Zonghe proposed a lighter sentence in court.

Dong Yu was sentenced to three years in prison. Meixiu told Zonghe that she was taking Baolan to Canada. She thanks Zonghe and will remember him. However, Bao Lan refused to leave with her. Dongyu left a letter to Uncle Pan, implying that if Uncle Pan thought the sapphire could replace Dobin, he would be willing to give it to Uncle Pan and never see his son again...

A year flies by. Along the tree-lined road full of cherry blossoms, Uncle Pan walked towards Dongyu's teaching center with sapphire-like hands. The petals fell like falling snowflakes. Looking at the snowflakes in the sky, Pan Shu showed joy, and Dong Yu's voice echoed in her ears: "I love you, like the only miracle in my life..."