Dad Breaks Down In Powerful Video About Son With Down's Syndrome

This emotional video, of a Canadian father explaining what he's learned from having a son with Down syndrome, has struck a chord with parents of special-needs children across Canada and around the world.

The man, whose 5-year-old son has Down syndrome, shared the viral video on Facebook after overhearing a conversation between another father and child.

"Down syndrome is literally one of the most beautiful things that's ever happened to my life."