Orchestral Country ballad, originally written for the singer's wife as they were separated by travel for a time. The sound has a poignant and sad feel to it.
Other songs like this one:
You're Gonna Miss This - Trace Adkins
This mid-tempo country song is about the various stages of life, and to make the most of now: "You're gonna wish these days/Hadn't gone by so fast These are some good times/So take a good look around You may not know it now/But you're gonna miss this".