Answer: The Third Temple, unlike the First and Second Temples, is the complete unification of all people on the face of the Earth. This unification will later be joined by the animate, vegetative, and still nature.
The Third Temple is directed toward unity. The First and Second Temple were a partial unity, unity of only one group of Kabbalists, whereas the Third Temple will be shared by all people and will include all of humanity. It is written: “My house shall be called a house of prayer for all peoples” (Isaiah 56:7), or “they shall all know Me, from the least of them unto the greatest of them” (Jeremiah 31:33).
The crisis will obligate us to reach this state of unity even if it involves world wars, but I hope that we will overcome the difficulty in approaching each other without wars, through the development and dissemination of the wisdom of Kabbalah.
Question: How can we be certain that we will truly build the Third Temple and not a new Tower of Babel?
Answer: We don’t intend to build anything tangible, we have no need for physical symbols. We want to build this Third Temple within our hearts, between us; this is the main thing. We don’t have to build any external structures where a person can run away and hide from the need to change himself. A person must “turn himself into a spiritual brick” with whose help this temple will be built.
We have already reached a situation today in which the ego is pushing us so much that we have no possibility of escaping it. It is pushing us to unite.
From the Kabbalah Lesson in Russian 9/25/16