Korean Budhism is distinguished from other forms of Buddhism by its attempt to resolve what it sees as inconsistencies in Mahayana Buddhism. Early Korean monks believed that the traditions they received from China were internally inconsistent. To address this, they developed a new holistic approach to Buddhism. This approach is characteristic of virtually all major Korean thinkers, and has resulted in a distinct variation of Buddhism, which Wonhyo (617–686) called the Tongbulgyo ("interpenetrated Buddhism"). Korean Buddhist thinkers refined their predecessors' ideas into a distinct form.