"I love playing big rooms. There's nothing like it. It's a power trip"

Jewel Kilcher is expressing her love for playing in large locations. She is describing the sensation of power and control that features performing in front of a big crowd. She is likely referring to the energy that comes from the audience and the feeling of being able to captivate them with her music. She is likewise likely describing the sensation of accomplishment that comes with being able to fill a large room with her music. She is revealing her gratitude for the special experience of playing in large venues and the feeling of power that includes it. It is clear that Jewel Kilcher enjoys playing in huge rooms and the sensation of power that comes with it.