I still remember the situation when my grandmother died. I remember exactly where I were (Seminar about violence targeted to child). I even remember exactly what came from the TV that night (James Bond 007 - Thunderball. Couldn't watched it, of course). It was snowing moderately. It was dark. But for somehow still pretty warm (-10 celcius).
I was unable to speak. I was unable to move. I just collapsed. Her passing wasn't predicted. She was in (moderately) healthy condition and all.
When time have passed, I have learned that everyone must die. Even my friends and relatives. Even I'll have to die some day. It isn't that we shouldn't remember our beloved... But life must go on, one way or another. I still stop to remember my grandmother time to time.
I'm not sure if this helped you, but I hope you will find consolation in my words.