This person is full of great advice for you, based on their life experiences. Their life naturally serves as an example to you. They relate to your struggles and emotions, and they're a big help to you in terms of illuminating your proper path in life -- your career, schooling or whatever else you're trying to achieve -- and in mapping out a viable plan for pursuing your goals.
They inspire you to work hard -- and, at times, they make you apply yourself, when inspiration alone isn't enough. This is a serious sort of aspect that lends a feeling of conscience to your relationship; in fact, you might not even be all that attracted to your partner in the beginning, because you might not feel ready to get serious! But the fact that this aspect exists between you means that it's time to focus on your path. When you're together, you focus on your responsibilities and duties to your work, your families and each other. Your lover could take on the role of taskmaster to you, which definitely blurs the boundaries between romance and work, between being equals and being teacher and student. In general, you inspire each other, and this aspect strengthens your bond, especially if this is a long-term relationship.