Internal peace is an essential first step to achieving peace in the world. How do you cultivate it? It's very simple. In the first place by realizing clearly that all mankind is one, that human beings in every country are members of one and the same family.
All human beings have an innate desire to overcome suffering, to find happiness. Training the mind to think differently, through meditation, is one important way to avoid suffering and be happy.
As a Buddhist, I view death as a normal process, a reality that I accept will occur as long as I remain in this earthly existence. Knowing that I cannot escape it, I see no point in worrying about it. I tend to think of death as being like changing your clothes when they are old and worn out, rather than as some final end. Yet death is unpredictable: We do not know when or how it will take place. So it is only sensible to take certain precautions before it actually happens.
Within the framework of the Buddhist Path, reflecting on suffering has tremendous importance because -realizing the nature of suffering, you will develop greater resolve to put an end to the causes of suffering and the unwholesome deeds which lead to suffering. And it will increase your enthusiasm for engaging in the wholesome actions and deeds which lead to happiness and joy.