Inscrutability is represented by the dragon. The dragon is energetic, powerful, and unwavering... According to tradition, the dragon abides in the sky in the summer, and hibernates in the ground during the winter. When the spring comes, the dragon rises from the ground with the mist and the dew. When a storm is necessary, the dragon breathes out lightning and roars out thunder. This analogy gives us some feeling of predictability within the context of unpredictability. Inscrutability is also the state of settling down in your confidence - remaining solid and relaxed at once. You are open and fearless, free from longing and doubt, but at the same time, you are very interested in the movements of the world. Your wakefulness and intelligence make you self-contained and confident with a confidence that needs no reaffirmation through feedback. So the state of inscrutability is conviction that doesn't need confirmation. You feel a sense of genuineness, that you are not deceiving yourself or others. That notion comes from being settled.

Chogyam Trungpa, from 'Authentic Presence' in 'The Sacred Path of the Warrior'