Snorri Sturluson's Ynglinga Saga states that Odin himself, chief of the gods, knew and practiced seidr, having learned it from the Vanir goddess Freyja, which placed the highest god in Norse myth squarely within a craft the same tradition elsewhere treated as strange and potentially disreputable for a man to perform. The poem Lokasenna has the trickster god Loki taunt Odin directly for practicing seidr, using language associated with ergi, a term carrying connotations of passive or unmanly sexual conduct in Old Norse moral vocabulary, implying that a man who performed this magic took on an unacceptably feminized role regardless of his other standing.
Modern scholars of Old Norse religion, including Rudolf Simek, read this tension as evidence that seidr was understood as fundamentally gendered practice, associated with women's power over fate and household fortune, so that a male practitioner crossed a genuinely significant social boundary rather than merely picking up an unusual hobby. Whether Loki's taunt reflects a real, consistently applied social penalty or is better read as a specific poetic insult within a flyting contest remains an open question in current scholarship, one this entry states rather than resolves.