Death is not a tragedy, it is a motivation. If it occurs to you that you'll die one day, you'll want to get everything done in one day. This is because you were sent on earth to do something which you've been given a right amount of time to do. You don't have forever fulfill your assignment and that's why time is a very powerful and dangerous tool that you must use wisely. Whether you'll fulfill your assignment or not depends on how you use your time. In other words, the outcome of your life depends on the use of your 24/7.
You are an answer to a question God knew would be asked in your generation. Until you answer that question you are not supposed to die. But answering that question is in the discovery of your purpose on earth. There is a problem which God has given only you the solution and ability to solve, if you die and don't find out what that problem is, it will remain. But if you find out what it is and provide a solution to it, your death will be an announcement of a fulfilled destiny.
So I'd like to round up by saying, death is not a tragedy to man of purpose but it is to a man who doesn't discover his purpose for existence.