Since mentors are people further along in their carrier, by seeking their guidance you can streamline your learning process and cut through the initial learning curve.

So you can benefit from their hard-earned knowledge and hit the fast forward button on your own journey.

By interacting with your mentor, you will also interact with his clients if you work hard enough to deserve it. Your mentor could provide you some minor works you can do by yourself, so you could talk with clients and build a network yourself.