The word 'Iblis' refers to a figure in a narrative, here viewed as symbolic of a force of nature; the umbral side of identity, faith, and fidelity. It may have begun as an epithet, meaning to induce grief or persist in despair:
1. There is an element of separateness [in a caste or from another caste].
2. There is a facet of exile or death [resulting from oneself or another], in various contexts a punitive outcome of trying to impose either of these oneself.
3. There is a peril of an ending as a barricade [to a group, a time, or a place] as a portent or face of an apocalypse [in the world or else entirely in oneself].