Painted panel in ink and color on cotton: Two Nahans (Arhats). Joseon dynasty of Korea, (1392-1910), late 19th century. An Arhat, in Buddhism, is a "perfected one" who has attained nirvana. Korean Buddhism 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 foreign countries 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 is called Tongbulgyo.