Psychology Book - Happiness is a light suitcase

Selma has succeeded in life, but she is not happy. Putting doing before being lost her. One day, on a train, she meets a peaceful man. He reads Christian Bobin and, like her, adores Jean-Jacques Goldman. He teaches him that happiness is a light suitcase and that the life we welcome brings more joy than the one we control. This novel invites us to reflect on our limits and leads us towards a more serene vision of life.