Jupiter in 6th House synastry is considered promising for such relationships as “employer-employee”, “colleagues-comrades” and “doctor-patient” where Jupiter’s attention and aptitude for creating favorable work conditions help the Sixth House personality. Both parties’ influence is benevolent so it’s hard to find reasons for disagreement. The partners are usually interested in each other’s ideas of innovation, and this helps them develop an emotional and empathic connection.
Jupiter in the Sixth House synastry is ideal for partners engaged in spiritual quests, religious education, medicine, and charity. They charge each other with high-spirited energy and enthusiasm, which allows them to realize the majority of their projects and plans. These partners also like to travel and take good care of their house if they live together.
from F. Sakoyan, L. Ecker
Jupiter in 6th House Synastry Explained
Jupiter in 6th House synastry is a position of “imprisonment” which is manifested in a dissonance between what the partners believe they are capable of and reality. The initial opportunities may stun you both, albeit differently. You will think that you finally met a person who’ll start doing your work instead of you (if not all of it, then at least a considerable amount). Your partner, in the meantime, will think that you are supposed to be their best friend and confidant who also makes his or her dreams come true. And, while Jupiter in Sixth House synastry does give some justification for such hopes, their optimism will most likely be exaggerated.
You are likely to think that your partner’s role in your work is rather superficial yet well-intended. He or she may hook you up with an expert in your field, and this connection will open great opportunities for you; yet all the work, including career growth, will still be yours to do. Besides, if your Jupiter in 6th House synastry partner is careless, they may humiliate you professionally, failing to notice the depth of your work which reflects your individuality and uniqueness.
From your partner’s viewpoint, your seeming readiness to serve their needs is not realized even when you express your desire to do so, so they’ll think they are more valuable to you than vice versa. If you start arguing in these terms, the synastry will show its ugly side, exposing a lot of meanness in both of you. If, however, the partner agrees to carry out some of your requests (those touching upon the areas where his or her abilities exceed yours, be they financial, social, or any other), the effect can prove extremely positive quite quickly: you will reach the next level of your work, and the partner’s Jupiter will activate and open new horizons according to the planet’s position in the natal chart.
from A. Podvodny