Change of view does not mean alone to accept another person's view. Particular view is the standpoint of the nufs; accepting another's idea is to fall under the sway of nufs, in this case the nufs of another.
The Sufi point of view is to perceive God's position, and when one can view life from the universal aspect as God sees it, it will include all points of view. This brings tolerance naturally, not as a moral, not as a discipline, but as the very part and portion of life. Then one will tolerate and forgive because one will not only see the other's viewpoint, he will know how and why the other came to that conclusion and will not separate the ideas from the whole life's experience of another. This is tolerance with wisdom and understanding.