The song is about all the ups and downs in life and what you will go through. it shows that you will go on your highs and your lows and you will live (drive-in songs case) through them.
On a highway, you can only go forward, with other cars, so this says that you can't look back and that you have to move on with life along with everyone else.
What is the metaphor in the song Life is a Highway?
Life is never that simple; life is much closer to old country back roads. Life is full of twists and turns and forks in the road. None of this turmoil, bad fortune, or decision-making is noted in the metaphor “life is a highway.” The metaphor would be much more effective if it was elaborated through more of the song.
Learn more about Life is a Highway here: brainly.com/question/24452126
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