nevasaññānāsaññāyatana

Also known as Sanskrit: naivasaṃjñānasaṃjñāyatana
Tibetan: ཡོད་མིན་མེད་མིན་༼སྐྱེ་མཆེད༽། འདུ་ཤེས་མེད་འདུ་ཤེས་མེད་མིན་༼སྐྱེ་མཆེད༽།
Tibetan (Wylie): yod min med min (skye mched) / ‘du shes med ‘du shes med min (skye mched)
Tibetan (phonetics): yo min mé min (kye ché) / ‘du shé mé ‘du shé mé min (kye ché)
English term: Neither Existence nor Non-existence
Alternative: Neither Perception nor Non-perception
English Definition: The fourth formless meditative absorption and its resultant formless realm of existence. A further subtler meditative absorption and more subtle state of mind that weakly grasps to the conception that perceptions are neither existent yet nor are they completely nonexistent. The base is either a. taking rebirth in the fourth meditative absorption of the Formless Realms or b. a lower being possessing a physical support entering into the meditative absorptions of the fourth meditative absorption of the Formless Realm. This is the highest state a being can achieve within samsara hence the name “The Peak of Existence”.
Spanish: Ni existencia ni no existencia