Pain teaches you what pleasure never could.
When James says that perseverance will lead to completeness, he’s referring to a fuller scope and understanding of life that only pain can teach you. Think about two college students and decide which one you think is more prepared for the real world of life. The first college student didn’t have an easy childhood. They had to work for what they wanted, making plenty of mistakes along the way and learning lessons gained only through trial and error. Along the way they developed a resiliency born from their discovery of the strength within them overcome. The second college student has never had to want for anything in her life. Her parents handed everything to her on a silver platter, shielding her from any trials or any pain. If she ever got in trouble, her mother was in the principal’s office the very next day to help her avoid consequences. Which one of the two seems better prepared for the real world? The first one, obviously. Why? Because pain teaches you what pleasure alone never could.