Your natural sense of how to grab hold of opportunities that arise in your life is very beneficial and inspiring to your partner, whose career somehow gets a boost from your unique perspective on things. They want to be successful in their work, and you actually are able to help them with that, either directly or indirectly. You may just have a new way of looking at their work or their role in society that they never thought of, and in telling them how you see them and their work, they get a renewed sense of purpose and direction.
You validate their sense of themselves as a successful person with an important career, and that really helps them to move forward and to seize any opportunities that arise. You might even help them out by introducing them to important people who help to further their career along, or by talking them up to everyone you meet; but it's most likely that your own natural qualities -- your enthusiasm, your optimism, your intelligence and understanding of how the world works -- simply inspire and educate this person, and help them to grow into an even greater success than they already are.