He alone is capable of knowing the Propator; but when he desired to impart like knowledge to the other Aeons, was withheld from so doing by Sigē. When Sophia ("Wisdom"), youngest Aeon of the thirty, was brought into peril by her yearning after this knowledge, Nous was foremost of the Aeons in interceding for her. From him, or through him from the Propator, Horos was sent to restore her. After her restoration, Nous, according to the providence of the Propator, produced another pair, Christ and the Holy Spirit, "in order to give fixity and steadfastness () to the Pleroma." For this Christ teaches the Aeons to be content to know that the Propator is in himself incomprehensible, and can be perceived only through the Only Begotten (Nous).