Mercury in Libra will oppose Jupiter in Aries, three times in September and October this year. It’s quirky because both planets will turn retrograde during this time frame. Consequently, it’s a narrow range of degrees that are most impacted.
If you have planets in the early degrees of a Cardinal (Aries, Cancer, Libra, Capricorn), you’ll be in the middle of this. But even if you don’t, this is a significant and positive aspect.
You’ll want to check the houses in your natal chart where these planets will be hanging round. The affairs of those houses will be energized and activated and as you can see, the energy will be sustained in a narrow band. You’re bound to learn something with this. I mean, it will be hard not to!