…which is the offspring that emerges through the power of all the repairs instituted through Chochmah and Binah. For this engrafting is surely carried out in order to produce some result. First it must be carried out, and afterwards comes the fruit – the gain it brings. The purpose of Abba and Imma becoming engrafted in Zeir Anpin is to give him his Chochmah and Binah. Thus the very presence of Chochmah and Binah in Zeir Anpin signifies that Abba and Imma are engrafted in Zeir Anpin and are part of the intrinsic law of that Chochmah and Binah.
Spiritual Growth as an Alchemical Process
Kalach Pitchei Chokhmah 124:7