The illusion of separation is self-created.

The illusion of separation is self-created for the purpose of love and love alone. Self veils itself to love and be loved and for no other purpose. Verily I say to you that all this is Self and that there are no others; there is only Oneself. Oneself itself is as all that is. Love, simply Love for all is Oneself. There is nothing but Oneself.
~ Wald Wassermann