What is the most precious thing you have ever lost?

Tweet

Tell me, what is the most precious thing you have ever lost? Was it a 'thing' like lots of money or juwelery? Or a relationship that you hade with someone? Or a person left your life, through death or through something else? I am curious, I myself can't really think of an answer to be honest. Especially not something materialistic, arent all materialitic things replacable? Even when it's one of a kind given by a special person, you will have the memories to keep in your mind right?