I think this song is about a woman who is living a boring life in the suburbs (with its 'freshly cut lawns'), but she doesn't 'see the light' until she discovers the bodies of the couple in the suicide pact. It makes her realise that she doesn't want to die in her husband's arms, she doesn't want to give up her life for him, so she packs her things and walks out. The light at the end of the song is her home receding into the distance.
I think this song is about a woman who is living a boring life in the suburbs (with its 'freshly cut lawns'), but she doesn't 'see the light' until she discovers the bodies of the couple in the suicide pact. It makes her realise that she doesn't want to die in her husband's arms, she doesn't want to give up her life for him, so she packs her things and walks out. The light at the end of the song is her home receding into the distance.