Final answer:
After Goodman Brown's experience in the forest, he is compelled to view all people with suspicion, resulting in a joyless, stern demeanor.
Step-by-step explanation:
The student's question pertains to a particular behavior or action that a character feels compelled to undertake after a significant event or realization. In Nathaniel Hawthorne's story 'Young Goodman Brown', the main character, Goodman Brown, experiences various dark and troubling events in the forest which leave him deeply distrustful of the people around him, particularly upon his return to Salem village. Although the excerpts provided do not explicitly mention the strong impulse Goodman Brown feels when he returns from the forest, based on the end of the story, it can be inferred that Goodman Brown's strong impulse is to view everyone with suspicion and as a result, he becomes a stern, distrustful, and joyless person following his experiences. This change in his behavior significantly impacts his relationships with others.