Zyiyuan's Thought of Buddha-Fields is closely related to his idealism, of which the main features are as follows: 1. Mind-only Pure Land: Under the premise of One-hearted having, Zhiyuan thinks that the Buddha-Fields and the Dirty-Fields are unified in one mind. If we develop the Buddha-Fields with the Theories of the mind, many Buddhas show the Buddha-Fields with the purpose for all beings to retrieve their own clean Buddha nature. Based on idealism, Buddha-Fields nature is also a skillful and convenient access. But Buddha-Fields is not just a convenient access. There is still the real land. This real land is the quiet and bright land. 2. Believe and desire by the name of Amitabha Buddha:Although Zyiyuan is an idealist, he is not an absolute idealist. He still advocates "Believe and desire by the name of Amitabha Buddha". Zhiyuan uses the Nirmānakāya (應身) and Dharmakāya (法身) to explain that every Buddha has its own Nirmānakāya and Dharmakāya. This confirms the truth of Amitabha Buddha. Furthermore, this is aimed at the adjudicators of intermediate or lower wisdom (their roots). In the end, Zhiyuan uses the Liu-ji-fu (六即佛) and Hsin-chu (心具) to illustrate the principle that Buddha Recitation can make their departs. 3. The common education of Amitabha and Sakyamuni: Because the roots (wisdom) of people are different, they proposed the common education of the two Buddhas, of which the result is "to retrieve their nature". This type of education can be traced back to the Prajna Pure Land (般若淨土), and Tien-tai's tradition of education. Therefore, there is the idea of the common education of two Buddhas. Another significance of this common education of the two Buddhas is the elimination of the opposition between the Buddha-Fields and the Dirty-Fields through education