Mzn 7 dus (moon-dus) 1) a large shaft leading to the underworld enclosed by a large stone, the lapis manilas 2) a process of purification(F) On days that were dedicated to the Gods of the underworld, the Etruscans would sacrifice the blood of animals, releasing the dead souls? To them, the afterlife was most important.   'Purification... the sacrificial shedding of new skin... It is a journey of realization; a remembrance of what was once calm and endearing.