Meditate about friend's death

Someone I know is dying. If its death doesn't affect me much (Sadness, remorse...), I feel meditating about its condition as my own could be very beneficial. But if its not taking advantage of him, I feel it's still taking advantage of the situation. And even though I'm very thankful to him, I still feel unconfortable to practice about its death. Would it be considered as a selfish way to meditate ?