Tension
Do you think of tension only in a negative sense? Kites fly, but not in the same sense as birds and airplanes. Paradoxically kites can only fly when they are tethered to the ground. There is tension in the kite string and if the string is released the kite will fall and blow away. You can fly like a kite with the wind of the spirit providing lift and holding you aloft. Yet you are human rather than a disembodied spirit and you need the attachment to the present material reality of your life to keep you grounded in this world. These two concepts are in tension but like the kite string this tension is necessary for you to fly.