We don't like it when we lose something. We think, "What can be gained from the loss?" But loss is also a way to grow.
Much of personal growth simply involves learning to let go... to loosen the rope that binds you to your "things." Like this thing you're missing.
Only when you achieve that will you be able to grow to a higher plane, a plane vast enough to hold more light and life than before. The divine energy that once brought loss can now openly and clearly bring blessing and great gain.