Dawn symbolizes hope,youth and joy. It also represents birth and new beginnings. Its also a symbol of resurrection. Dawn has also many meanings in various cultures.
Its the famous sun mask that symbolizes the Sun’s superiority over the four directions(East, West, North, South).
Apollo is the name of Greek god of Sun. Its the symbol off life, light, youth. Apollo was associated with Helios.
Surya is the Vedic God of Sun. He symbolizes immortality and rebirth. He crosses the heavens daily riding his chariot.
Rahu is a Hindu Deamon. It was believed that he had no body and he swallow the sun that causes eclipses. But the sun shines again, cause Rahu has no body to contain the Sun. There is a similar story in Chinese mythology.
The Sun is always considered as a symbol of power and strength.
In the Japanese Flag the Sun is being used as a symbol of power and strength. In that flag the red disc represents the rising Sun.
The Sun was also used as a symbol of power, strength and rebirth in the Sun King and Freemasonry.