What does Katie mean when she says she wants to live for something?

When Katie says she wants to live for something, she expresses a desire for purpose and meaning in her life. This often implies seeking a passion, goal, or cause that motivates her and gives her existence a sense of direction and fulfillment. It reflects a longing to contribute to something greater than herself, whether it be a personal ambition, a relationship, or a social cause. Ultimately, it highlights her quest for a deeper connection to her life experiences.