If you've got this aspect in your birth chart, you're an an intense thinker. Often there's a sense that your mind is driven, which can lead to obsessive thoughts. Mercury is on the edge here, itching for a fight. But it also means you've got the power pack of Mars instigating your mercurial processes. Mars' surges create impulsive speech, but can also make your words incendiary and highly charged. You can be relentless with intellectual pursuits. This can lead to being a public speaker, researcher or an investigative journalist.
There's a tendency to act before you think. You may also use words to intimidate. You may be defensive. You can be argumentative, or be someone that provokes with language. You can be a dynamic communicator.
