We are Travellers
The fact of the matter is that this world is not our home. We are travellers, passing through. We came from our previous life, and in a few years, or a few days, we shall move on to our next life. We entered this world empty-handed and alone, and we shall leave empty-handed and alone. Everything we have accumulated in this life, including our very body, will be left behind. All that we can take with us from one life to the next are the imprints of the positive and negative actions we have created. If we ignore death we shall waste our life working for things that we shall only have to leave behind, creating many negative actions in the process, and having to travel on to our next life with nothing but a heavy burden of negative karma.
Cultivating Positive Minds
On the other hand, if we base our life on a realistic awareness of our mortality, we shall regard our spiritual development as far more important than the attainments of this world, and we shall view our time in this world principally as an opportunity to cultivate positive minds such as patience, love, compassion, and wisdom. Motivated by these virtuous minds we shall perform many positive actions, thereby creating the cause for future happiness. When the time of our death comes we shall be able to pass away without fear or regret, our mind empowered by the virtuous karma we have created.