Sometimes your thoughts move faster than your words can keep up, creating this weird disconnect between what you mean to say and what actually comes out of your mouth. Your Mercury sesquiquadrate Sun aspect means there's always been this subtle friction between your core self and how you communicate that self to the world. People might give you puzzled looks or ask you to clarify things that seemed perfectly clear in your head, leaving you wondering if you're speaking a different language.
The good news is that this constant need to bridge the gap between thinking and speaking has made you incredibly thoughtful about communication. You've learned to slow down and really consider how your words land with others, which makes you surprisingly effective once you get the hang of it. Your friends probably notice that you have this unique way of explaining things that shows you've really thought it through, even if it takes you a beat longer to get there than some people.
Your thoughts and your voice aren't quite syncing up right now with Mercury sesquiquadrate the Sun. You know exactly what you want to say, but somehow it comes out sideways or gets completely misunderstood. That brilliant idea in your head sounds like mumbled nonsense when you try to explain it, and people are giving you those blank stares that make you want to crawl under a rock.
This awkward dance between your mind and your self-expression is actually pushing you toward something better though. You're being forced to slow down and really think about how you communicate instead of just assuming people will get you. The frustration you're feeling is your cue to dig deeper and find clearer ways to share what matters to you. By the end of this transit, you'll have developed some seriously improved communication skills that make your future conversations way more effective.