In Late Antiquity a cult of Helios Megistos ("Great Helios") (Sol Invictus) drew to the image of Helios a number of syncretic elements, which have been analysed in detail by Wilhelm Fauth by means of a series of late Greek texts, namely: an Orphic Hymn to Helios; the so-called Mithras Liturgy, where Helios rules the elements; spells and incantations invoking Helios among the Greek Magical Papyri; a Hymn to Helios by Proclus; Julian's Oration to Helios, the last stand of official paganism; and an episode in Nonnus' Dionysiaca.
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