Increasing the Strength of the Heavenly Host

It is stated in Zohar Chadash (Medrash Rus): “Rav Yudai said that brachos are so powerful that they increase the strength of the Pamalya Shel Maaloh (Heavenly Host). Rav Chaniah said that Birchas Hamazon is so powerful that it increases blessing in a person’s handiwork.”