Okay kiddo, let me explain. A morning star is a special weapon that warriors use in battles. It's like a stick with a big heavy ball at the end made of metal or wood with spikes on it.
So, when warriors are fighting the enemies, they use this weapon to defend themselves and attack the other side. They may swing it around to hit people, and the spikes on the ball hurt the enemies a lot.
It's called a "morning star" because it looks like a star in the sky, and people believed that it could bring light to the darkness of the battlefield, just like the morning light brings light to the darkness of the night.
It's a very powerful weapon, and you have to be very strong to hold it and use it properly. People don't use it much anymore, but it was very important in ancient times when people would fight battles with swords, axes, and other weapons.