My Answer: The spiritual principle is the perception of the Creator. You must lead a person to that. To do so means to instill in a person a strong necessity to communicate with the others and thereby step out of oneself. As soon as a person starts perceiving others as himself, he will immediately discover the Creator outside of himself.
Why do we need a society? It is to practice exiting ourselves. The Creator is beyond me, but I don’t perceive Him. The surrounding society, on the other hand, is within me, but the Creator purposefully made it look like the society is something external. In truth, it only seems so; I only feel that everything is outside of me.
However if I “glue” this imaginary picture, both its external and internal manifestations within me, I and the surrounding world become one whole, and in this way I prepare my perception to grasp what is outside of me. When that happens, I immediately and naturally discover the Creator because except me, outside of me, there is only Him.
Then where are these worlds, where is all humanity? I discover that they are all within me and have always been there. They existed externally for the sole purpose of enabling me to tune myself like a musical instrument, as a new organ of perception, to feel the Creator. This is why I was given the sensation of myself, which is divided into two parts: me and the world. But in reality, this world doesn’t exist outside of me at all.
When we find a way to tell this to people and show them the necessity of such self-tuning, they will understand why Kabbalah teaches us to “Love the others as yourself.” It is solely for the purpose of bringing us to the perception of the Creator, the Source of ultimate goodness and perfection.