Use 'rapt' to describe someone's full absorption in an experience, as if nothing else exists. During the concert, the audience was rapt by the performance.
Pro Tip 2/3
Intrigued Audience
'Rapt' often implies that something is so captivating that it holds one's complete attention. The children listened to the storyteller, rapt with wonder.
Pro Tip 3/3
Emotional Response
'Rapt' can suggest an emotional reaction, like joy or awe, in response to an experience. He watched the sunrise, rapt in its beauty.