When NASA scientists want to accelerate a space craft without expending fuel, they perform a manoeuvre called a “slingshot”. They fly the space craft close to a planet and let the gravitational pull increase its speed. The interstellar craft hurtles towards the planet and is briefly pulled around in a partial orbit before being catapulted back out into space at incredible speed. The cross is the spiritual mass around which God’s purpose on creation slingshots around.
Marcus Tutt
From the book “Reaching For Healing”