Analyzing Word Choice in Narrative Context

Read the following excerpt from a fictional narrative:

As the sun dipped below the horizon, the townspeople gathered in the square, their faces illuminated by the flickering lights of the torches. The air was thick with anticipation, a tangible spark of energy as whispers rippled through the crowd. Eleanor, standing at the forefront, felt an intoxicating mix of anxiety and exhilaration wash over her. This was not just another evening; it was the moment they had all been waiting for, a culmination of hopes and dreams.

In this context, what is the most significant effect of the author’s choice to use the word “intoxicating” in relation to Eleanor’s experience?