Someone asks the speaker where they want to go, and the first answer that comes to mind is "Take me home." Then comes a small shock: the speaker realizes they don't actually know where home is. That quiet confusion drives the whole poem.
The speaker doesn't see home as an address. Other people link it to a loved one or to shelter from the cold, but for the speaker it's a feeling: hearing a favorite song for the first time, the flutter of a crush, a stranger being kind. These examples are warm and fleeting, which may be why they're so hard to point to on a map. Rather than try to explain, the speaker gives an easy answer, the Golden Gate, and keeps the real feeling private. The closing question to the reader sounds lonely but also open, as if inviting someone to say "yes, me too." The mood is wistful, tender, and a little isolated.