Final answer:
The sun goddess who is regarded as the most important deity in Shintoism and who gave light to the world is named Amaterasu.
Step-by-step explanation:
The most important of the Shinto gods is the sun goddess who gave light to the world, Amaterasu. She is esteemed as a central figure within the Shinto religion and is believed to be the ancestor of the imperial family of Japan. The Yamato line, including Emperor Jimmu, claimed descent from Amaterasu, and this connection amplified the divine status of the ruling class. Shinto shrines, including the Ise Grand Shrine dedicated to Amaterasu, and various rituals celebrate her significance within Japanese culture.