Nonmeditation is the essential unique method of Dzogchen meditation. But nonmeditation cannot be programmed or devised. These twenty-one semdzins are open-sesame keys to nonmeditation, meditations that open up into nonmeditation or make space for nonmeditation. The natural flow of consciousness is dammed by the semdzin and mind is 'held' momentarily, during which time the window to the nature of mind is thrown open or enlarged and nonmeditation can...