Original sentence: The Epistles of Manushchihr are a response to comments made by the author's brother on the subject of purification in Zoroastrianism.When Zadsparam, High-Priest of Sirjan (near Kerman in center of Iran) proposed certain new precepts, the unsatisfied people of his district complained to his older brother Manuschchihr, who was High-Priest of Kerman
Edited sentence: The Epistles of Manushchihr(Minocher) are a response to comments made by the author's brother on the subject of purification in Zoroastrianism.Therefore, they decided to  to complain to the high priest's older brother Manuschchihr, who was the high priest of Kerman.When Zadsparam, who was the high priest of Sirjan which is located near Kerman, proposed certain new precepts, the public were not ready for change and were very unsatisfied