Feelings

So now just think about human feelings in good mood, sometimes it's bad mood. Actually am quite confusing about to write feelings or to who gave these feelings. I think I should write about who gave these feelings; human. How can be one human hurt another one. How can be human jealous with other success or happiness. And how can be human kill human with no regrets. All we know that we are going to dead one day, so why we people hate each other so much. There is a time when no one point anyone for their sufferings. But now times has changed a lot, now every people is responsible for others sufferings. There is a time when everyone free like a bird , but now their are many boundaries and boundation. Boundary is like different different countries, different different religions different different cultures and off course too many bad people with feeling to rule whole the world. So technically everyone knows that one day they going to die in age 50 or 70 minimum, still they just become selfish. Why didn't people think if they were stay together everything will be feel like heaven on earth.