The "hindrance of wisdom" also known as the suozhizhang 所知障 or "hindrance by what is known" （jn~eya-a^varan!a）. One of the two hindrances， the other being the hindrance of defilements 烦恼障. The hindrance to wisdom is considered to be much more profound， affecting religious practitioners of high attainment， whereas the hindrance of defilement affects lower-level practitioners. ［二障义、 HPC 1.789c］