Edward Slingerland argues wu wei in this sense has to be attained. But in the Confucian conception of virtue, virtue can only be attained by not consciously trying to attain it. The manifestation of Virtue is regarded as a reward by Heaven for following its will – as a power that enables them to establish this will on earth. In this, probably more original sense, wu wei may be regarded as the "skill" of "becoming a fully realized human being", a sense which it shares with Taoism. This "skill" avoids relativity through being linked to a "normative" metaphysical order, making its spontaneity "objective". By achieving a state of wu wei (and taking his proper ritual place) Shun "unifies and orders" the entire world, and finds his place in the "cosmos". Taken as a historical fact demonstrating the viable superiority of Confucianism (or Taoism, for Taoist depictions), wu wei may be understood as a strongly "realist" spiritual-religious ideal, differing from Kantian or Cartesian realism in its Chinese emphasis on practice.