What Is The Object Of The Beast's Castle Level?

The object of the level is that while everyone is trying to get Belle and Beast to fall in love Xaldin was trying to make it so they don't and Beast would turn into a heartless so that they could control his nobody.

On the first part, you have to beat a monster in the ballroom. The second part, STOP XALDIN!!!!!

Well when you go there for the first time, your objective is to save The Beast's friends, get him back to his senses and defeat that evil floating heartless thing. When you go there the second time, you have to help The Beast get back "something he held dear" to his heart, which was the rose he had. Once you did that you had to kill Xaldin, the organization member responsible for all the trouble that went on in his castle.
I HOPE THAT ANSWERS THE QUESTION <D......