i see it as a song about an imperfect relationship. i think the lyrics express the person's desire to make it an amazing, great relationship where they are in ~perfect harmony~, but "it's a thousand mile trek" and a lot of work that may not yield the desired results. the speaker wants it, but their lover may not be as invested as they are, which prompts the ending question: "darling, you gotta let me know-- should i stay, or should i go?"
i also think the "fire" is their rocky relationship, which the speaker wants to turn golden.
i see it as a song about an imperfect relationship. i think the lyrics express the person's desire to make it an amazing, great relationship where they are in ~perfect harmony~, but "it's a thousand mile trek" and a lot of work that may not yield the desired results. the speaker wants it, but their lover may not be as invested as they are, which prompts the ending question: "darling, you gotta let me know-- should i stay, or should i go?"
i also think the "fire" is their rocky relationship, which the speaker wants to turn golden.