 The other Buddhist philosophy that had the greatest appeal in China was Madyamika, which answered the question of the nature of Nirvana or the Buddha nature by not answering it—Neo-Daoist quietism. The realization of this emptiness was a kind of non-realization, a giving up, or an inexpressible, mystical, prajna-knowledge which contrasts with “ordinary” knowledge. This helped blend discussion of dao and Buddha-nature even more and fueled the eventually widespread Confucian bias that they were the same basic religion.