Among the artifacts first discovered in the lower levels of the Iniscail excavation were the sophotechnological artifacts now known as purity-of-heart switches. These devices resemble the hexagonal touch-plate switch used by the Precursors in several of their sites, but are in actuality complex systems capable of remote neural scanning and analysis.
The term “purity-of-heart switch” was derived from a translation of Precursor glyphs accompanying descriptions of the item found in the area of the Iniscail site identified as “the Instrumentery”. However, as with all translations from the Precursor, this is at best an combination of these linguistic best-fits in uncertain relation.
After a degree of spiritual experimentation, it was determined that a more accurate translation would be “purity of intent” or perhaps “singularity of will”. The purity-of-heart switch is a quantifier of qalasír; a device that detects one’s mental focus upon a single task or topic. Installed in control mirrors and security gates in sensitive areas of Precursor facilities, the purity-of-heart switch served to deny access to these to individuals distracted, or otherwise not adequately focused upon the tasks they were to perform.
Moral perfection, sadly, neither required nor detected.
– Simples of Complexity: Precursor Commonplaces