In narrative literature, the Silla monk Uisang (625-702), who studied Huayan under Zhiyan (602-668) and was venerated as the founder of the Hwaom school in Silla Korea (ca. 300-935), is remembered as a devout practitioner of devotional Buddhism more than as an exegete. Aside from his famous Seal-diagram Symbolizing the Dharma Realm of the One Vehicle of the Avatanasaka-sutra (Hwaom Ilsung popkye to T.1887A), among the Buddhist literature of the Koryo (918-1392) period are preserved two vow texts attributed to Uisang: "Vow Made at White Flower Enlightenment Site" (Paekhwa toryang parwonmun) and "Vow on the One Vehicle" (Ilsung parwonmun). Can these works be reliably attributed to Uisang? And if so, to what extent? Or should they be considered later works imagined by the Hwaom monastic community of the Koryo period that assert their authority by virtue of their claim to authorship by the Silla monk?