Influence of Appearance
Phra Pidta had a handsome look and good karma. Many worshipers loved him very much. Even some of them mistaken him for Buddha. These had become barriers to his practice. Rumors about female worshipers had better hospitality to him because of his handsome appearance were spread. There was even saying he had affair with the female.
Thus to avoid these rumors from spreading again, Phra Pidta used his supernatural power to change his outlook and became ugly, short or fat.
However, these couldn't change their enthusiasm to him. Therefore he closed his eyes in long time, ignoring people's words and attitude, with all focus in his practice.