Considering that she is the wife of one of the most important Gods in our religion,Thor, and the mother of his children, you would think that there would be much more written about her. Sif is the main character in the story of Loki cutting off her hair, probably to annoy the hell out of Thor. When Loki is threatened for his evil deeds, which he almost always is, he goes to the land of the Dwarves, and has them fashion a hairpiece made out of spun golden threads. This wonderful golden hair when worn actually adheres to the scalp as though it were real hair. Sif then is written out of the story, or at least put aside, and then Snorri goes on to tell us about all of the other wonderful things that the Dwarves made as a result of a dare by Loki. Loki dared the Dwarves that they could not make three things more precious. After Ivaldi made the headpiece, the spear Gungnir, and the ship Skidbladnir, he bets Brokk that his brother Eitri cannot make three more precious items. Eitri goes on to make the boar with golden bristles, Gullinbursti, the replicating ring Draupnir, and of course Mjollnir.
Sif is the mother, with Thor of course, of Magni and Modi, who with Vidar and Vali will inherit Asgard when Surt' s flames die out, and the child Goddess Thrud, that everyone seems to forget about. One of the Eddas, Skaldskaparmal, tells us in one stanza that Jarnsaxa is actually the mother of Magni, and even goes so far as to say that Sif is one who shares a man with Jarnsaxa. Jarnsaxa is listed as a Jotun, which in my mind makes the story of Sif " sharing a man with Jarnsaxa ", impossible. Thor hates Jotuns ! Period ! Male or female ! Sif is also the mother of Ullr, which of course makes him a step - son to Thor. I surmise that because we never hear of the father of Ullr in the Eddas he may have been killed which would of course have allowed Sif to re - marrry.
Sif is accused several times of infidelity in the Eddas. First by Harbard, ( Odin as the ferryman ), who flings insults back and forth with Thor across the river Thor wishes to cross. Thor never does get across ! And later by Loki at Aegir's feast. In both cases the insults may have been thrown in the heat of the moment with little or no truth involved in the accusations. Especially in the case of Loki who was accusing most of the Goddesses that night of infidelity, including All - Mother Frigga !
We can ascertain from a boast made by a Jotun as to the looks of Sif. Prior to the duel with Thor, Odin invited the Jotun Hrungnir in for a drink. During this drinking Hrungnir drunkingly boasts that he will kill all of the Gods, except of course Freyja and Sif who he will take back to Jotunheim with him. From this we must deduce that Sif is as beautiful as Freyja, who we all know is one of the most beautiful of the Goddesses.
Sif is known as the Goddess of the wheat harvest, probably because of her flowing golden hair which resembles a field of swaying wheat blowing in the wind. Sif and her husband Thor were, and still are, honored ritually to protect farms and their crops from harm, much in the same way the fertility Gods and Goddesses are honored for helping the harvest yield be abundant.
Although there is little said about Saga in the Eddas Snorri lists her second in his catalog of Goddesses. Once again some see her as just another name for Frigga. One of the reasons for this is that it says in the Eddas that Odin and Saga drink through the days out of a golden cup at her farmstead in Sokkvabekk. Some equate Sokkvabekk to Frigga' s Fensalir.
Sokkvabekk, which means something like sunken field, is said in Grimnismal, to be one of the four places that Odin visits, and Odin himself states : " Cool waves resound over it. " Saga is believed to be a seeress which is another reason scholars tend to think of her as Frigga . In the Eddas it says that Frigga knows the future but says nothing. Because of Odin's close ties with Saga I wish that the Eddas told us more about her, but unfortunately we are left wanting.
Go with Odin's wisdom, Freyja's love, and Thor's protection !