The protagonist in Sinclair Lewis's "Babbitt" experiences a rush of exhilaration after consuming a cocktail, awakening intense desires within him. He feels a strong urge to engage in impulsive activities such as driving fast, romantic pursuits, and artistic expression, highlighting a longing for a more vibrant life. This moment reveals his inner turmoil and dreams that have been suppressed by societal expectations.

As he reflects on his feelings, he recognizes his untapped potential for living life to the fullest, acknowledging that he possesses qualities of extravagance and passion that he has ignored. This realization marks a pivotal moment for the character as he confronts the disparity between his mundane existence and the thrilling desires simmering beneath the surface, prompting him to reconsider his life's choices and aspirations.