Abstract
<jats:p>Information on mental illnesses, psychosomatic illnesses, and psychotherapeutic methods can be found in the Dasaṇṇaka Jātaka. These illnesses arise from unwholesome mental states (akusala), such as greed (lobha). Therefore, in Buddhist literature, they are recognized as mental illnesses (cetasikaroga). The mental states resulting from these conditions, such as sorrow (soka), which represents one aspect of dukkha, can lead to psychosomatic illnesses, specifically diarrhea, that occur due to sorrow (soka-atīsāraya). There is a direct connection between mental illnesses and cognitive processes influenced by unwholesome mental states. Thus, mental illnesses and psychosomatic illnesses stemming from them cannot be treated with medication. Instead, by employing methods that transform the cognitive process into a wholesome (kusala) one, both mental and psychosomatic illnesses can be cured. This reflects the mental illnesses, psychosomatic illnesses, and psychotherapeutic methods articulated in the Dasaṇṇaka Jātaka.</jats:p>