Pain is inevitable. Since the time we are born we go through pain. Both emotional and physical. The baby comes out from his mothers womb through a painful procedure and he goes through emotional pain of getting seperated from his mother. same way in life we all go through one or other pain and most of the times we wonder why it is happening to me or the simplest one is we are taught that we are going through past bad Karmas or if we are having some good situations, its always a good karma, if its always about past, there what about moving forward, not only in human life, but in the life of a soul..we go through pain to move forward too..different situations come, so that we can learn, however, if we dont know why they are happening, we would always suffer. the mother is in pain while giving birth but she is happy because she has a purpose for that pain, equal amount of pain if is given to anyone else without a purpose the person would not be able to bear it, its almost as good as dying..you always suffer if you dont know the purpose because then..punishment is always toward moving to past and purpose always takes you ahaed ..whenever there is something which you feel is giving you pain, always ask why it is there and what would you get out of it..once you would know that..you would stop suffering. However, if you keep going through pain without knowing why it is happening you would keep suffering and you will not be able to reach to the purpose and without that everything would just get wasted. So know your purpose.