Parte 12 · Capítulo 169

And the third distinction that there is in the four kinds of Shema themselves is this: for behold, even though we say that at the time of the Shema all the levels enter with the VAK from the side of Ima of the inner Gadlut, nevertheless these intermediate levels have a difference between them, for sometimes they all enter together, and sometimes they enter scattered and separated. And the secret of this depends on the word "Israel": for we have already explained in the Shema of Yotzer that the secret of the Shema is to raise Mayin Nukvin (feminine waters) from ZON to Aba and Ima, so that Aba and Ima will couple and bring down Mochin to ZON.