The Magic of Singing for an Audience

I've heard a lot of musicians talk about the magic of singing for an audience. What is that like? Right before going on the stage? I actually had the opportunity to play the opera again this week, ind the grand old opera. And i played one of my songs first, and then invited her out to sing, nothing but times second. She came to me afterwards said, you looked so calm on stage and before you went out, like you seemed like this was so easy for you. But once i get out there and start playing, that's where i'm comfortable. Leading up to it, i'm going crazy. It's like mas, just like a race, or any