Many of the healings that took place in New Testament times were instantaneous. Healing can still come suddenly today because the law underlying it hasn't changed at all.
"Evangelicals and pietists, too, early recognized, sometimes far more explicitly in the mission field than at home, that it was not enough to bring pictures of Jesus, even pictures of Jesus with native features, or words about Jesus, even words about Jesus in the native vernaculars, to the non-Christian world.
Many courses and seminars promise a close look at the basis for effective decisionmaking. But there is no substitute for the prayer "Thy will be done."