How does someone move on from the death of a spouse?

If your partner or husband/wife dies, how would someone actually move on from that and find love again? It's one thing if it's a break-up or divorce, you got cheated on or things ended amicable.

But what if they were snatched from you during your happiest moment ever? I'm not sure I would fully recover from that. Depending on what point of my life that happens, I might just stay single for life. There is someone at work whose wife passed away in an accident. He's a single father of 3 kids; 2 teenaged girls (age 13 and 15) and an 11 year-old boy.

How does someone move on from the death of a spouse?
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