as I read from Rabbi Jacobson, based on the verse Shema, the purpose of this world – for God is the "ultimate bachelor", was to create Unity, which means that Divine Sparks from the essence came into each of us, so the way we know we are in the Divine, is if our behavior creates unity (and hence radicalism, which is hate, including jihad, motivated by false ego, for delusions of what God wants, is the opposite of the purpose of humanity)