The nine-cemetary contemplations presented in the Satipatthana Sutta work with elemental perspectives on the parts of the body by simulating their condition after death.  The clarity of mind realized in these special practices sheds light on how valuable death contemplations are for a wholesome and happy life.  Not only does the mind gain immense lucidity and peace, but we are able to access and develop special qualities of mental composure, joy and discernment.