 Rebbes traditionally devote their utmost attention to reading kvitelach. It was said of the Bohusher Rebbe, Rabbi Yitzchok Friedman, that when he read a kvitel, he put his whole being into the piece of paper before bestowing his blessing. The Satmar Rebbe, Rabbi Yoel Teitelbaum, was known to scrutinize each kvitel and point out errors in the writing of names of people he had never met.
