Truth is the absence of illusion; illusion the absence of truth.
Both cannot be together nor perceived in the same place.
Truth and illusion have no connection.
But illusions are always connected, as is truth.
Each is united, a complete thought system, but totally disconnected to each other.
Where there is no overlap, there separation must be complete.
And to perceive this is to recognize where separation is and where it must be healed.