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.