Kevala is the Jain form of spiritual completeness, or spiritual liberation. A kevalin is someone who is liberated from the effects of karma. It is similar to the Buddhist state of nirvana and the Hindu concept of moksha.
To achieve kevala, one must follow the path of ahimsa, or non-violence, because Jains believe that it is the only path to spiritual liberation. The term is also used in Jainism to refer to kevala jnana, which is omniscience or supreme knowledge. A person who has attained kevala jnana is also called a kevalin.