Belief, faith in the Guru, is so important. In the Great Perfection we rely on our faith or belief in the Guru. We do not attain liberation just by sitting in an empty state of mind or just by always learning. Most important is our belief. We take this energy of our belief, this power of our belief and it becomes one with us, it is absorbed in our mind stream. And then, it is not just belief, it becomes a state of realisation. Belief becomes realisation. Afflictions become bodhicitta. Belief is transformed into our true nature of mind.