The Ilm-e-Kshnoom ('science of ecstasy', or 'science of bliss') is a school of Parsi-Zoroastrian philosophy based on a mystic and esoteric, rather than literal, interpretation of religious texts. According to adherents of the sect, they are followers of the Zoroastrian faith as preserved by a clan of 2000 individuals called the Saheb-e-Dilan ('Masters of the Heart') who are said to live in complete isolation in the mountainous recesses of the Caucasus (alternatively, in the Alborz range, around Mount Damavand).