Elder twin in the Apapocúva-Guaraní cosmogonic cycle. Conceived by Ñamandu (the high creator-god, "Our Father Who Stands Up Alone") of Ñandesy ("Our Mother"). The cycle was first recorded systematically by Curt Nimuendajú from the Apapocúva storyteller Joguyroquy in his 1914 ethnography Die Sagen von der Erschaffung und Vernichtung der Welt; the parallel Mbya-Guaraní version preserved by León Cadogan in Ayvu Rapyta (1959) provides the continuing-tradition recension. In the canonical narrative, Kuarahy spoke to his mother Ñandesy from the womb, guiding her through the forest; he pointed out flowers along the way, she stopped to gather them, insects stung her, she struck back at her own womb in pain — Kuarahy fell silent, refused to continue speaking, and Ñandesy lost her way. Lost in the forest, she reached the dwelling of the Yñvaguasu (monster-jaguars); the jaguar-grandmother hid her, but the jaguars discovered and killed her. Kuarahy and his half-brother Jasy survived in the womb; were extracted by the jaguar-grandmother and raised among the jaguars. On growing to youth, learned the truth of their mother's death and slew the monster-jaguars together with Jasy — luring them across a river that collapsed beneath them, in the most-cited recension. Attempted to resurrect Ñandesy by gathering her bones and singing the resurrection-song; the attempt was complicated by Jasy's premature looking (or laughing) which prevented full resurrection — Ñandesy partially restored as a tapir or as the Pleiades constellation. Ascended to the celestial vault and became the Sun; Jasy became the Moon. The twins together preside over the cycle of day-and-night and over the Yvy Marãe'ỹ (the Land-without-Evil) — the perfectible cosmological destination toward which Guaraní migration-prophecy moved during the colonial and post-colonial periods. The Apapocúva twin cycle is one of the most extensive in lowland South American oral tradition, with parallel recensions across Mbya, Apapocúva, Pãi-Tavyterã, and Chiripá Guaraní subgroups.