'She said, Behold, my maidservant Bilhah' means the affirming means, which has its place between natural truth and interior truth. 'Go [in] to her' means that with this means there exists the ability to effect a joining together. 'And let her bear [a child] upon my knees' means acknowledgement by the affection for interior truth, in which affection the joining together begins. 'And I too shall be built up from her' means that in this way it has life. 'And she gave him Bilhah her servant-girl as his wife' means that a link with the affirmative means was established. 'And Jacob went [in] to her' means a joining to it. 'And Bilhah conceived and bore Jacob a son' means reception and acknowledgement.