The Christian Science practitioner has the great and fundamental responsibility to recognize God's ability to heal the case at hand. Mrs. Eddy says, "Truth does the work, and you must both understand and abide by the divine Principle of your demonstration."Science and Health, p. 456
The practitioner must discern eternal Truth, which "does the work." He must accept Truth and appreciate it, acknowledge and experience it. Thereby he demonstrates it.
He isn't trying to take over in place of God and do the healing himself; rather he is the divinely appointed witness to the work that God, Truth, is always doing through the Christ, the true idea. It's reassuring and invigorating for him to affirm, in the words of Job, "He [God] performeth the thing that is appointed for me: and many such things are with him."Job 23:14 And in the words of the Psalmist, "I will cry unto God most high; unto God that performeth all things for me."Ps. 57:2
