In the line "I'm gonna turn around, head for home," "home" is sung to a C note, and at the same time, the chord progression moves to a C major. The song is in C major, so these are the tonic note and tonic chord, respectively, and they provide a musical sense of coming home.
When I referenced my transcription of the lyrics, I also noticed the phrase "all alone" in the line "I'm in a crowd, yet I'm all alone." Because these two words start with the same sound, there's a sense of the exclusivity of being alone.
