Great spiritual teachers and meditators never tire of reminding us of the transience of our earthly lives. Medieval Christian philosophers specially kept a human skull on their tables, which should have reminded them of the immensity of existence. And Buddhist monks in some Asian countries, as in previous times, meditate in cemeteries, increasing their awareness of their own frailty and mortality. Sooner or later - maybe many years from now, or a year from now, or even tomorrow - each of us will go into a different world. As we think about it from time to time, we make it easier for us to prioritize our lives - and we think about the reasons that make us meditate. Of course, if you don't like thinking about death, you don't have to think about it. But maybe your fear of death will disappear as you open your heart to the wealth and infinite value of life. Take about ten minutes to this meditation exercise (taken from Jack Corfield's A Path with Heart). 1. Sit back, close your eyes and t