Emergent church. Mixing eastern mysticism with Christianity. From what i've read it originated in the Toronto Airport Christian Fellowship, barking, animal sounds, moaning, rocking, laughing, paralysis, drunkeness 'in the spirit'.
You lay still, or lay down, with music on, and 'empty your mind' of everything but God. Then just 'soak' in His 'presence'. Personally it sounds a lot like the mellow version of drunk or slain in the spirit. Some kind of 'experience' that you have to keep up to keep you feeling 'close' to God.