Final answer:
The narrator includes information about first meeting his wife while volunteering at the hospital to establish their relationship and build an emotional connection.
Step-by-step explanation:
The narrator includes information about first meeting his wife while volunteering at the hospital in order to provide background information and establish the relationship between the two characters. This helps to build the emotional connection between the narrator and his wife, and also highlights their shared compassionate nature. By showing that they both volunteered at the hospital, it suggests that they have similar values and interests, which strengthens their bond as a couple.