The first thing that schools of religion used to teach is meditation on one's death. If one does not accept that their physical body will die, how will they know how to take advantage of those moments of decay and decrepitude in order to awaken consciousness
If you awaken your consciousness, you can take control of your life, and your death will be, as one German Initiate stated, "the most hallowed of festivals," made blessed through knowing how to live a good life. It is true that we have a determined time on this earth, but it also depends on our choices: if we know how to use our energies wisely, to live an upright life, we can prolong our time here. But if we are rash, foolish, irate and lustful, that energy that gives us life will be wasted, and our death will come much sooner.
There are many good people who die early because they did not know how to use their energies with the consciousness. When I refer to an upright life, I mean the path of awakening the consciousness. There are many good people with sound morals who do not awaken consciousness, since the awakening the consciousness goes beyond cultural and relative morality: it pertains to the ethics of the spirit.
Joyful in hope, suffering in tribulation, be thou constant in thy prayer.
Benedictis, qui venit in nomine Domini. Osanna in excelsis.
"Blessed is he who comes in the name of the Lord. Hosanna in the highest!"