Answer: A Mezuzah has four components, which together represent the entire HaVaYaH: Yod-Key-Vav-Key, in other words, the upper system. A person, wishing to resemble the Creator, enters this system of complete HaVaYaH. It is then his home, the mother’s womb, in which he develops.
The system HaVaYaH symbolizes the loving attitude toward us from this upper force, the Creator. Attaining love of others, we resemble the Creator who loves His creation and unite with Him in a mutual embrace.
Question: If He loves me, why does the Creator not embrace me now?
Answer: Because you do not correspond to Him, you disregard Him, you are opposite to the upper force of the system, and therefore undesirable.
The Creator relates to everyone with love, but His goal is to bring everyone to attainment of the upper force, in order for all to know the Creator, to reveal Him and become equal to Him. In this way we stop being puppets without free will, not understanding anything in our own lives, and raise ourselves to a higher level, eternal and absolute.
Question: But what is the purpose of the commandment to put a Mezuzah in the doorway?
Answer: It has to remind us that there is the upper force on which we are dependent and we need to resemble it, behave as it does. As it is merciful, so we should to be merciful, as it is compassionate, so we should be compassionate. In the end, all is very simple.
Question: So the Mezuzah symbolizes the force of love and positive connection between us?
Answer: Just as any other commandment in the physical world, it directs us to the need to follow it spiritually, internally.
From KabTV’s “A New Life,” #819, 01/26/2017