Thus indeed …the initial purification is not truly complete… Although at first sight it would appear that the entire purification was complete, nevertheless this is not so – because a faint trace of the desolation still exists: Hod-Yesod-Malchut have still not emerged completely from the desolation.
…until the elapse of twenty-four months of the period of Suckling… The fact that the child still suckles from his mother shows clearly that he is still in need of the flow of outside influence and still requires repair and purification. And thus in the world below the newborn baby has to develop his innate powers, and this he does during suckling.