In "cranes", song-sams memories of his father revealed that

In "Cranes," Song-sam's memories of his father revealed that he always questioned his choice to leave the village.

Although at the time, it was necessary for him to leave, it doesn't mean that it was easy. He was very hesitant about what he was supposed to do, and even though he decided to actually go, he was still wondering whether that was the right thing to do.