I think the first think that comes to your head when you realise you’ve lost something would be “SHIT”. And you’ll think about how important that thing is to you and all the things that you will miss or why hadn’t you been more careful etc.
But the thing is, soon enough you will not miss it. Sort of like when you throw things away that you realise you don’t exactly need anymore. You give yourself reasons why. I’m thinking if detachment is really that good a thing to have.