Why Sunni Shia Dialogue is Important ?
Theological differences between Shia and Sunni best left for Allah to judge, as He knows best and has said in the Quran that He is the final judge of religious disagreements. The killing of Shias or Sunnis will not resolve these disputes.
The principle of “no compulsion in matters of faith” (Quran 2:256) is not just limited to Muslim-non-Muslim relations. It applies to Muslim interpretations of Islam as well. This instruction of God serves as a guideline for the Muslim community to not impose one’s interpretation on others. That is why throughout history, not only have Hanafis and Shafis worked with each other despite differences, but Shias and Sunnis have lived and worked side by side with each other as well.
When human beings sit down and talk to each other, they learn to respect each other. Dialog allows parties to understand each other better by allowing participants to acquire direct knowledge about beliefs instead of relying on propaganda and stereotypical images. (Quran 49:6-12) Dialog will isolate the extremist fringe. It is a major sin to kill a human being. Killing a human being is like killing the whole of humanity. By talking to each other, Shias and Sunnis will be able to save lives, which is like saving the whole of humanity. (Quran 5:32)
Revenge is not justice. Killing in revenge is unjust, inhuman, and un-Islamic. Retribution through the state, which the Quran sanctions via capital punishment does not amount to individuals taking the law in their hands or killing an innocent person in revenge. The call for, “an eye for an eye,” does not mean an innocent eye for an innocent eye.
The Shia community like Sunnis is diverse. There are many differences between one Shia group and another. This is why it is important that dialog between Sunnis and Shias becomes a movement and a process throughout society instead of everyone waiting for one high powered dialog to yield some results at the leadership level.
Source :http://www.soundvision.com/article/a-call-for-shia-sunni-dialog