The tradition of acheiropoieta (ἀχειροποίητα, literally "not-made-by-hand") accrued to icons that are alleged to have come into existence miraculously, not by a human painter. Such images functioned as powerful relics as well as icons, and their images were naturally seen as especially authoritative as to the true appearance of the subject: naturally and especially because of the reluctance to accept mere human productions as embodying anything of the divine, a commonplace of Christian deprecation of man-made "idols". Like icons believed to be painted directly from the live subject, they therefore acted as important references for other images in the tradition. Beside the developed legend of the mandylion or Image of Edessa, was the tale of the Veil of Veronica, whose very name signifies "true icon" or "true image", the fear of a "false image" remaining strong. A familiar example of an icon of this type within Roman Catholicism is the icon of Our Lady of Guadalupe in the West.
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