Bruce Larson tells about leading a renewal conference in a great Gothic cathedral-like Presbyterian church in Omaha, Nebraska years ago. As people came in they were given a balloon filled with helium. They were told to release it at some point in the service where they felt like expressing the joy in their hearts ” during the anthem, the hymns, the prayers or the sermon. Since they were Presbyterians, says Larson, they were not free to say "Hallelujah" or "Praise the Lord." Letting go of the balloon would represent praise going up to God. So all through the service, brightly colored balloons were rising up to bounce off the ceiling, visual signs of praise to the Lord. But oddly enough, Larson notes, when the service was over, about a third of those balloons were still unreleased. Those Pre…