Religious practices

The other day I was bored on the computer and I don’t know how or why I got to an article naming the strangest practices of religions and I spent most of the time thinking of their customs, but I didnt understand the thinking that those religions had.
The article mentioned things such as sacred underwear that occurred in a certain group of Mormons, men and women had to wear a garment that covered from their shoulders to their knees, completely white, as an act of faith and devosión to god.
Also it talked of a Jewish ritual where someone had to give a person chicken three times over the head of a man to free him from his sins, and then the chicken was slaughtered and donated to the poor. In 2005 in the U.S. there were so many dead chickens lying in the street they had to fine the Jews from this practice.
It also mentioned a religion that I had never heard of, Jainism, where men walked naked as they felt dressed for the environment, but that was not the strangeness of this religion, it was that their only possession was a broom peacock feather.
And the article kept saying there were still fun facts of religions around the world, who , and that made me see the different ideas and ways of life there.