A magician's cat decided one day to become a magician too. The magician had a very special wand, that allowed him to cast very complex spells that only people with magical blood could usually do. The magical blood people, are witches here in the Minecraft Universe. And the magician also had a magical hat with a shattered piece of creative in it that allowed her to bring any animal or monster to life by wishing for it and then pulling it out of the hat.
Now this is why the cat wanted the hat and the wand, she wanted to go and save her father who was also a magician cat. Unfortunately, he was stuck in the nether. In an alternate timeline, the cat might just take a nap, but here she had a job to do. So you see this figure represents the start of a grand adventure.