I like these lines from the song:
"Yog dab tsis tau cab, tsov tsis tau tom, nyuj tsis tau nrau, ces thov koj xa ib xov tuaj qhia kuv paub"
Back in the days we didn't have cell phones or Facebook. If you two really liked each other then you corresponded through handwritten letters and your hlub would pay long distance to speak with you on the phone.
You also had to make time to take pictures, take the film roll to get developed, and wait about a week before picking them up.