 In this theory, the scene of the Tonsured Maize God rising from a turtle carapace (the 'tomb' of the earth) is interpreted as Head-Apu I resurrected.The flanking Hero Twins assisting him are accordingly taken to be his sons.Head-Apu I is thus often referred to as a 'maize deity,' and the maize deity is commonly referred to as a 'first father'.