Bentching From a Siddur Is a Segulah For Children

A woman who lived in Yerushalaim once came to Rav Yehoshua Leib Diskin zt”l and cried that all of her children had died in infancy. She asked him for a bracha and he advised her to make sure to always bentch from a siddur. She accepted to do this, and she was blessed with healthy children.