'Sarai said to Abram' means that it was so perceived by Him. 'Behold, now, Jehovah has prevented me from bearing' means the state prior to the birth of the Interior or Divine Rational Man. 'Go in now to my servant-girl' means a joining to the more exterior man. 'Perhaps I shall be built up from her' means the possibility of the rational being born in that way. 'And Abram hearkened to Sarai's voice' means it could not have been achieved in any other way.