Mercury (communication and ideas) heads into harmonious Libra on September 9th. Will it be a case of balanced words, or sugary-sweet sentiments? Maybe both? I don't know, what do you think?
Yes, that's a bit of a joke at Libra's expense, but it underscores the truth about this sign; awareness of both sides of any issue. Sensitivity to what others are thinking and feeling. Mercury in Libra is the moderator, the one who (ideally) dances on the fine point that sits between both truths (for Libra, there is always more than one truth). Unfortunately, real life doesn't always reward neutrality; sometimes it's mistaken for weakness. What some people don't realize is that it takes discipline to remain neutral.
Mercury's transit of Libra will draw your attention to how your words are received by others. Courtesy is this transit's theme, but the challenge will be to prevent courtesy from devolving into pretty words that mean nothing. From September 12th to 14th, Mercury in Libra will be hit with a square from Pluto retrograde at 9 degrees Capricorn. From September 14th to 16th, Mercury will oppose Uranus retrograde at 11 degrees Aries. Pluto will push for deeper meaning, and Uranus will expose it with merciless clarity. During these few days, it will take an extra effort to smile while others question/challenge you. You may be pushed to agree/disagree with something. On the other hand, if you start this transit by waffling on a decision that needs to be made, Uranus and Pluto will hold you accountable. You'll have to decide what's appropriate; make The Choice, or maintain your cool, steely neutrality while everyone around you gets worked up.
But from September 16th to 19th, Mercury will get a cheery push from Jupiter at 16 degrees Cancer. Extreme optimism is the only way to describe this influence. A nice way to bounce out of the Uranus/Pluto crush, but caution is still warranted. This is the classic, "over-promise and under-deliver" aspect. You'll really want to make someone happy, so you'll say "Sure!" Or, you'll hear something that seems too good to be true. It may very well be true (and you may be able to deliver everything) but keep your expectations and promises in check. Prepare for good news, but stay real about it.
Mercury will be in Libra until September 29th. If you have planets/angles from 9-16 degrees Libra, Cancer, Aries or Capricorn, you'll be impacted by its aspects to Uranus, Pluto and Jupiter.