Good question, and one that I often ask.
At one time in my life I will freely admit that I was not ready to die, nor in any condition to do so. In fact for much of my early life, while much of my reading concerned death (for instance, my favorite poets were the War Poets of the first world war like Wilfrid Owen and I read a lot of Nihilists and Existentialists whose work dwellt obsessively on death) I suppose I harbored a secret conviction that while other people might die, I never would.
In fact you might say that one of the many factors used by God in my conversion to Christianity was waking up to the fact that I was going to die, and having my eyes opened to see that I was not the altruistic and wonderful fellow that I told myself I was, and that if there was in fact a Holy God then I had nothing that might qualify me to enter into His heaven, quite the opposite actually.
Today, I am ready to die, in fact I can honestly say with Paul - "For to me, to live is Christ, and to die is gain. But if I live on in the flesh, this will mean fruit from my labor; yet what I shall choose I cannot tell. For I am hard pressed between the two, having a desire to depart and be with Christ, which is far better." (Phil. 1:21-23) I am eager to be away from this world and present with the Lord but like Paul I know that I still have responsibilities here and people who depend upon me, so I am content to stay until the Lord decides my work here is finished.
I believe that John Bunyan, the author of Pilgrim's Progress put it very well when he said that we are well advised to be preparing ourselves for death now while there is still time, rather than letting that visitor that will come for all men call upon us unprepared:
Bunyan wrote: "I say, be acquainted with the grave and death. The fool puts the evil day far away, but the wise man brings it nigh. Better be ready to die seven years before death comes, than want one day, one hour, one moment, one tear, one sorrowful sigh at the remembrance of the ill-spent life that I have lived. This, then, is my admonition to you; namely, that you know death, what it is, what it does when it comes. Also, that you consider well of the danger that death leaves that man in, to whom he comes before he is ready and prepared to be laid by it in the grave."
- SEAGOON