why is there suffering/pain in the world?

No matter what you believe in or who you believe in, I think there is one thing that is obvious. Life is not always fair. There will be misery and discomfort and everything else. Still there is a value in that in some ways and lessons to be learned through adversary. If the world was absolutely perfect, than no one would really learn anything. Besides, there is a lot of goodness in life. However, would we really know how good it is if there was no misery? We would not have a direct comparison to anything and thus life would just exist, without any lows to make us really appreciate the highs. There has to be balance. Without bad, there cannot be good. Without pain, there cannot be pleasure. Everything that we do not like has the simple purpose to make everything that we like much better.

such things happen because god wants to test us..there are many level of harship in life and everyone experience it a different way..ya see people with no wealth sometimes is happy despite not having enough money to live but it is the happiness with loved one that keep them alive..if everyone is happy in this world,there;s nothing interesting going on...everything will be perfect and that just exist in cartoons or stuff made up by people...that is what we call reality..we wish that we can have all the things we want to but we can't..we have to earn it..that's when we learn the values of life..people struggle to live happily when at the end they can't achieve it..but they do try..about the war and such things..it shows that human can;t be satisfied and always wants more..people sometimes is not grateful for what they have and thus try to get it in a nasty way.....it is a human nature to do that

without pain you will know the valve of it !! i believe so.