v1-20 - After their stormy trip across the lake, Jesus and the disciples land on the opposite shore - outside of Israel. This is Gentile (anybody who's not a Jew) country, and the first Gentile they meet is a doozy.
He has an entire legion of demons living in his body.
Nobody could subdue him, not even with chains.
Yet this wild unstoppable freak of nature fell at the feet of Jesus, trembling.
The demons beg not to be tortured, and to instead allowed to go into a nearby herd of pigs, which meet a quick, unfortunate end.
The terrified people meet Jesus, and this man, who's no longer a freak,
and out of fear they beg Jesus to leave,
and the man begs Jesus to take him with Jesus (notice how much begging is going on in this story!).
Jesus declines the man, and instead makes him the first missionary.
Contrast this command to spread the news in Gentile country, as opposed to the secrecy Jesus is trying to maintain in Israel!
Mark ends this episode by simply noting the people were amazed.
v21-43 - After coming back to Israel, immediately another crowd gathers.
The synagogue leader (a member of the establishment) begs Jesus regarding his sick daughter.
Jesus began going to the daughter, and along the way is touched by a sick woman.