The song, in general, speaks about a relationship that is unwavering of any obstacle thrown in their way. “Next” means the time of the day when the Sun sets down and this is a metaphor to hardships in life. “Dawn” is the time of the day when the Sun comes up again. Sunrise is usually a symbolism for new beginnings, hope and prosperity. So the song speaks about their love being unchallenged in times of hardships and good times.