Okay, sweetie! The line says that the lion is called the 'king of beasts' because it is very strong and brave, just like a king in a story.
First, let’s talk about the lion’s thick mane. A mane is like a fluffy hairdo around its face, usually golden or dark. It makes the lion look big and impressive, which shows it is special, just like a king!
Now, about the lion's roar! When a lion roars, it can be heard far away, and it sounds very powerful. It’s like the lion is saying, 'I am here and I am the king!'
So, think of the lion with its big mane and mighty roar, like a strong king who is proud and rules over other animals!