Which theme is best represented in this excerpt?

The people expected of me and I had got to do it I could feel their 2000 wills pressing me forward irresistibly ...

The excerpt transmits to the reader a strong sensation and decision feeling produced by the force called pressure.

Accordingly, the best theme represented in this excerpt is an artist behind the scene.

The artist have to wait in a place where there is a crowd expecting of his/her show. In this kind of situation the artist is under many emotions produced for the encounter with the crowd.