It is difficult to delineate a concrete definition for pain but let me describe both mentally and physically.We see pain portrayed in many ways in films from frightening to suspenseful and even comical.But there is always a gigantic difference between all of them.I have experienced pain in different ways,infact everyone has to go through the cycle of this pain in their lifetime.Pain is good because it gives us understanding of what BAD is all about.Its the badness,the unpleasantness,the horrible emotions that are evoked when we feel pain that makes it work so well.Pain can even be mysterious,a mystery whichis sloved but not accepeted.When i mean not accepted again i emphasize both mentally and physically.physically a pain is like pushing needles up into your foot.just to understand what is pain is,a defination from encycolopeidia -- "Pain is the body's warning system, alerting youthat something is wrong. itas an unpleasant experience associated withactual or potential tissue