Miss someone you never met?

Can you miss someone you never met?

I have been pondering on this question since days now, and the more I think of it, the more it makes sense to me that it is not just momentarily, but I miss someone I never met constantly. But who is that someone in my life whom I miss so much in spite of not meeting that someone?

May be its a friend I hoped to make but I ended up not making.
May be its the girl of my dreams whom I haven’t met till now.
It might be my grandfather whom I didn’t even get to see…
May be its a friend I long for whenever I feel everyone else is very busy to be around me

Or may be its just God. Perhaps… Maybe… Ummm