Death is natural, no life is complete without it. Its how the world continues to evolve and change. Technically according to evolution, we would likely not be here today without death. Because there would be no resources left on earth if everything that ever appeared on this planet never actually died off, since there would be organisms feeding off every sort of imaginable resource (speaking from my Biology background). From a personal standpoint, I'm more annoyed with death than anything, its not that I want to live forever (that would be just as awful in many ways), but because I know I won't be able to accomplish everything I want to in life.
As Hagu from Honey and Clover said "One lifetime is not long enough to open all of the boxes".
The only thing I worry about really about dying, is what should I do with my dolls? I kind of think it would be cruel to them to take them with me. But at the same time, I couldn't imagine being parted from them.
The afterlife, if there is one, I've believed, is whatever you believed it to be in life, its not a concrete setting of a semi-benevolent god in a land above, or whatever your religion (or lack of such) may be, but instead the amalgamation of the universe as you believe it to be. It is sort of derived from the theory of how if you think something very strongly, it affects the world around you, and in this case, what comes after our definition of life ends. It has been said there are alternate planes of reality past the confines of the universe, so who or what is to say lies beyond what is essentially our insignificant existence in the grand scheme of what is much greater forces. For all I know, I will be able to meet the essences of how I imagine Feena and Kud to be in the next life, or I may not. Its not my place to know this, but I do know I'll find out eventually. So in short, I'm not afraid of dying, its just another curiosity, even an adventure that eventually everyone has to embark on :)