words fail me
When something tragic happens to someone you care about, your immediate instinct is to do or say something that will help somehow. But this is futile because it's impossible to find the words to express how heartbroken you feel for this person and there's nothing you can do to make things better. We end up feeling useless (especially when you have to resort to impersonal communication like emails) and you really wish that you could wrap your arms around this person until the tears are gone.
I feel so lucky that I've never had to go through such pain, but I feel so awful that there's nothing I can do. Except be here.