Even when being confident and ambitious, it could be really difficult to understand what career path you would like to pursue and, once you found it, it is often challenging to identify how to maximize your opportunities.
That is why it is extremely useful to have a mentor that has already experienced the challenges a mentee is facing. The mentor could provide tips on how to start your dream career (if you already have one) or assist a mentee in understanding what she really wants to do with her future. Furthermore, the mentee and the mentor can plan short term goals such as obtaining a summer internship for the next year.