Picture Large standing on a shrine roof, One crowning his head as he blocks the sun.
Villagers beat taiko and perform kagura to coax Amaterasu from Amano-Iwato (the sun-goddess’s cave) - drums go don-don, the crowd’s breath goes ah-ma.
When the sun returns a silk ribbon of stars (Amanogawa, the Milky Way) spills across the sky - One + Large = 天, the open heaven above.