u/Fit-Artichoke-3546

Hi, i wanted to ask about how mercury mahadasha plays out for a person who is running through it. Asking for my brother as i am observing him it looks like a lot of shadow work needs to be done in his life yet he seems so confused and just at the begining of his dasha, he got auto immune. His saturn MD was way long ago, before his 20s. Though his wits are strong, he rarely has best friends but the one he seems to connect are people who are bit older than him which i think due to saturn's influence. But career wise, he is just lost. He sometimes gets clarity and then he is on the same old route again. He tries but things do not seem to go his ways though. Is this what happens?