I've never done that, but I can imagine it's humbling to see all the graves of those who died to protect us.
I also have never walked throught the cemetery, but I was there, and just looking out over it was was an emotional experience.
Took my Dad (WWII vet) there every year for several years with the Sons of Amvets Ohio bus trip. It's very humbling. One time walked all the way back from the amphitheater to the visitors center.