Inferring Emotional State from Stage Directions

In dramatic literature, stage directions give actors and directors essential information about the performance. These directions often contain insights into the emotional state of characters as well as the ambiance of the scene. Consider the following excerpt from a play's stage directions:

As the curtain rises, a flickering light casts shadows across the room. JANE, sitting alone at a dimly lit table, clutches a letter tightly in her hand, glancing nervously towards the door.

Based on the stage directions, what can be inferred about JANE's emotional state as the scene begins?