Sentence:  According to Dionysius, the <WSD>dominations</WSD> have the duty in the heavenly host of regulating the tasks of the angels and "through them the majesty of God is manifested." Through the efforts of the <WSD>dominations</WSD> - who are naturally seen only rarely by mortals -- the very order of the cosmos is maintained. 
Meaning of the word marked with <WSD> tags:  A high order of angels in the celestial hierarchy.