This enables us to resolve an apparent problem in the teachings of the ARI of blessed memory. For the full period of Suckling (יניקה, yenikah) is defined as continuing until the age of thirteen years – only then is Zeir Anpin called mature (גדול, gadol). But that is the time when Chochmah-Binah-Daat complete their entry, not when they start to come. If so it would seem that Zeir Anpin should be called mature immediately after the first twenty-four months of Suckling, for that is when Chochmah-Binah-Daat start to enter.