Txä'msem — 'the Giant' (Wigyet, 'big man'), the Raven — is the central transformer-trickster and culture-hero of Tsimshian mythology. Born in the sky to the Chief of Heaven's daughter (who drank him in the form of a cedar leaf), he cries for and then breaks open the box Maa, releasing the daylight upon a world that had known only dusk. As transformer he then wanders the earth ordering it: bringing the olachen up the Nass River and contending with his brother Lô·gôbolā' over fresh water. At once benevolent shaper and greedy trickster, he is the pivotal figure of the published Raven cycle recorded by Boas and Tate.