Ask any parent, and they will tell you the same: their biggest fear is losing a child. It does not matter how old you are, your child should always outlive you. And when it doesn't, it is devastating, cruel, and almost too much to bear.

William Jazwinski was driving around in his truck when the police officer pulled him over. Jazwinski had no idea why he was pulled over. He learned that he was not in trouble when he rolled down his window.

The officer wanted to thank William for his military service, as he had an army bumper sticker on the back of his truck.

The officer asked him where he served, and William replied it was 15 months in Iraq.

The policeman then told William that he, too, had a son who served in Iraq. However, he never made it home.

William noticed that the officer was still grieving, but he saw an American flag on his dashboard. He had received a similar flag when he learned about his son's death.

That is when William got an unusual request. The policeman told him:

"You remind me of my son. I pulled you over. I thought you were him. I still don't believe it most days he's gone."

He then asked for a hug.

Of course, William hugged the grieving father, and the two started crying, holding onto each other. What the officer learned then was that William was on his way from a program for veterans dealing with PTSD. So, he also needed that hug.

After sharing his post on Facebook, many were moved. William described a moment when two strangers gave each other what they needed. It was as simple as an embrace.

Some people enter our lives without warning and change it for the better, giving us the one thing missing: hope.