In Mandaeism, the nishimta (ࡍࡉࡔࡉࡌࡕࡀ ; plural:) or nishma (ࡍࡉࡔࡌࡀ) is the human soul. It is can also be considered as equivalent to the "psyche" or "ego". It is distinct from ruha ('spirit'), as well as from mana ('nous'). In Mandaeism, humans are considered to be made up of the physical body (pagra), soul (nišimta), and spirit (ruha).
When a Mandaean person dies, priests perform elaborate death rituals or death masses called masiqta in order to help guide the soul (nišimta) towards the World of Light. In order to pass from Tibil (Earth) to the World of Light, the soul must go through multiple maṭarta (watch-stations, toll-stations, or purgatories; see also Arcs of Descent and Ascent and araf (Islam)) before finally being reunited with the dmuta, the soul's heavenly counterpart.[1]
A successful masiqta merges the incarnate soul (ࡍࡉࡔࡉࡌࡕࡀ ; roughly equivalent to the psyche or "ego" in Greek philosophy) and spirit (ࡓࡅࡄࡀ ; roughly equivalent to the pneuma or "breath" in Greek philosophy) from the Earth (Tibil) into a new merged entity in the World of Light called the ʿuṣṭuna ('trunk', a word of Indo-Iranian origin[2]). The ʿuṣṭuna can then reunite with its heavenly, non-incarnate counterpart (or spiritual image), the dmuta, in the World of Light, where it will reside in the world of ideal counterparts (Mšunia Kušṭa).[3]