A doctor sees more different patients each year than a teacher sees different students. The doctor can affect those people in ways that are much more personal and have much more of an immediate impact on their life. Teachers can help enrich the world intellectually, but doctors help keep us in good health.
The 5 w's, who, want, where, when and why
Are you talking about personal goals or writing goals?
In writing, it's supposed to help you identify each requirement. It helps to keep you on track basically.
In almost all forms of literary work, especially fiction, the character that represents the hero is almost always asked to rise about adversity in someway and fight for principles.