Now, if you tell yourself "Huh, I've never thought about that... this blog seems kinda depressing..." Have no fear! It ain't like that. Also, if you said "I've never really thought about it" I envy you, also you might be an animal. So.... without the usual "umms.... ermms"
What does it mean to die? Well, the easiest answer to the question "It's when you kick the bucket for the last time". Which leads me onto the next question, can we really, truly die? And I don't mean in a physical way, all things end but their not forgotten. People will remember you, the way you touch their life's have helped shape who they are. Thus that kinda answers the question "Am I important?" Yes, because without you're touch on other people, they just wouldn't be the same. If someone knew a crippled person in one reality, they would (hopefully) know pity and want to help people like that. Whilst in another reality, the said someone didn't know said disabled person, would he know pity? Not in the way he did before.
Back to the second question though. Can we truly die? If we die physically but the way we lived our life, the way we touched people for the better or worse will have long lasting affects. Which leads me to my answer, no.
We never truly die because we never truly leave this world, but we are awarded eternal rest, and quite frankly I thank whatever god for that part.