Due to the popularity of Vimalakīrti-nirdeśa sutra, there were a mount of annotations in Ancient China. Alought the authors based on different kind of thought, those annotations were still Madhyamika thught. However, Kuiji who inherited Xuan-Zhang’s teaching, annotated Vimalakīrti -nirdeśa sutra by Vijñapti-mātratā thought. Furthermore, he explained "tathagata gotram" as "tathagatagarbha", flipping Vijñapti-mātratā thought to tathagatagarbha thought. Kuiji’s commentary on Vimalakīrti-nirdeśa sutra was thought to vanish the difference between The One Vehcle theory of The Lotus Sutra and The Five Lineages theory of Vijñapti-mātratā thought. Therefore, Kuiji annotated the famous sentence in Vimalakīrti-nirdeśa sutra "To the Extent that the Mind of a Bodhisattva is Pure is his Buddha-land Purified", commentaring "Mind" as "alaya" and " Prakrti-prabhasvara-citta". He tried to bulid a foundation of The Five Lineages theory. Kuij’s mistaken commentary not only misunderstood the reality in Vimalakīrti-nirdeśa, but also mixed up Vijñapti-mātratā thought and tathagatagarbha thought. Nevertheless, Kuiji’s point of view in buddha-dathu theory was a fusion of horizons in Gadamer’s hermeneutics. It also displayed Kuiji’s standpoint:Vijñapti-mātratā thought was ultimate truth