Sangwôn , the youngest of the chief disciples of Ûisang , was very curious , asking his teacher many questions . He probably outlived the other disciples . He taught Sillim 神 琳 , who became the chief transmitter of the Ûisang lineage of Hwaôm . Many of Ûisang ' s pupils made notes of their master ' s lectures and wrote sub － commentaries on Ûisang ' s commentary to the “ seal text ". These writings were mostly known by the names of these monks . Only one of these texts is known by a place name or some idea of its contents . This last is known variously as the Ch ' udonggi 穴 洞 記 , the Chit ' ongmundap 智通 問答 or Hua － yen ching wen － ta 華嚴 經 問答 . It was a record made by Chit ' ong of the answers Ûisang gave in reply to various questions . Perhaps Sangwôn wrote a Sangwônnok , which has been mistakenly written down by a scribe as Wônsangnok . This latter is clearly a Silla text , for like other Silla texts , it uses the title tôk 德 for Ûisang , a title that was reserved for eminent Silla monks . In the absence of any other evidence , however , this identification remains simply speculation .