one day it occured to me that everything we are; Who we are as people, family, friends, morals....everything. Its all just memories. Electrical connections firing across neurons. When death takes hold, those memories die too. When we are gone, all thats left is the memory of what was. The key to immortality is to make that memory of what was last an eternity. Do you want to live forever? Make your life count. Effect those around you. If you make a big enough impression, people will be sharing the memories of what was until the end of time.