Saturn In Libra in the current sky brings us lessons in relationships and/or oppositions. Self and other. Although truly we inhabit just one vehicle called the self, when we open our eyes we see the other. What we see and how we see it is often coloured by our own sense of self... the other is often a mirror of our own image. Yet not exactly.
In Jungian psychology it is said that everything we experience is a projection of our own inner reality. I personally believe that is partly true. It makes sense that our personal bias colours how we perceive others. Put on rose coloured glasses and everything looks rosy. In Astrology, we can look at how our planets (in our birth chart) are interacting with the other persons. It is quite remarkable how much that describes our interactions.
For example, I once knew someone that, no mater what, always seemed to trump me. He always had a better answer, smarted response, bigger insight etc. I felt dwarfed by him and no matter how I tried it just was the way it was. I was just getting into Astrology at that time and someone gave me a book on Synestry : the relationship of two people's charts/planets. I looked up his and my charts and discovered that his Jupiter was opposite my Sun. Jupiter is the largest planet, and is all about expansiveness/bigness. It can be a know-it-all and a bit overbearing. His Jupiter was thus overshadowing my own sense of self (Sun). I found the description so accurate I had to laugh, and after that I stopped trying to big myself up around him...I let him be right as much as he wanted and it actually became quite humourous.
A few years later I met a woman with the same need to always be right or be better etc. I again felt a sense of having to shrink back from her overbearing energy. It felt familiar, and remembering the last time, I looked up our charts. Lo and behold...there was the same configuration: her Jupiter opposite my Sun.
Since that time, I have used synestry charts again and again to make sense of various experiences with others, or, as an astrologer, to help people in relationships understand the dynamics between them. Its a fascinating tool to help step back from our reactions and see that its all just energy interacting. Having a relationship chart done is a really good idea at some point in your partnership... of whatever kind. Perhaps not at the beginning...I wouldn't think its a good idea to go in with too many preconceptions. But once patterns start to emerge, a good look at your interactive charts can help immeasurably.