1. "And Hashem spoke to Moses saying, Speak to the children of Yisrael, saying, If a woman has conceived seed, and born a male child..." (Vayikra 12:2). Rabbi Elazar opened with, "By night on my bed I sought him whom my soul loves" (Shir Hashirim 3:1). HE ASKS, It says, "on my bed," while it should have said, "in my bed," why "on my bed?" AND HE ANSWERS, The Congregation of Yisrael spoke before the Holy One, blessed be He, and beseeched him concerning the exile, because she is sitting among the other nations with her children, and lying in the dust. And since she is lying in another, defiled land, she said, "on my bed" I beseech, since I am lying in exile, AND EXILE IS CALLED 'NIGHTS.' Therefore, "I sought him whom my soul loves," to take me out of it.
2. "I sought him, but found him not" (Ibid.) BECAUSE it is not His custom to join me save in His palace AND NOT IN EXILE. "I sought him, but I could not find him" (Shir Hashirim 5:6), since I dwelt among other nations, and only His children hear His voice, as it is written, "Did ever people hear the voice of Elohim...?" (Devarim 4:33)
3. Rabbi Yitzchak said, "By night on my bed" said the Congregation of Yisrael, THE SHECHINAH. "On my bed" I complained before Him, NAMELY I ASKED HIM to join me to gladden me FROM THE LEFT COLUMN and bless me FROM THE RIGHT COLUMN in perfect joy FROM THE CENTRAL COLUMN. For we have learned that from the union of the King, ZEIR ANPIN, with the Congregation of Yisrael, many righteous people receive the inheritance of a holy portion, NAMELY SUPERNAL MOCHIN, and many blessings thus abide in the world.