Analyzing Tone in Emotional Language

In the following excerpt from a fictional narrative, the author describes a character's emotional state using specific language choices:

"As the storm raged outside, Sarah sat alone in the dimly lit room, her heart heavy with an unbearable weight. Shadows danced across the walls, and the echo of thunder seemed to resonate with the turmoil in her mind. Each flash of lightning illuminated her face, revealing the turmoil etched into her features."

Based on this passage, which word best captures the tone created by the author’s choice of language regarding Sarah’s emotions?