Sunrise usually represents a new life or hope, whereas sunset often symbolizes a life that is about to end or the ephemerality of existence.
The Sun likewise addresses inventive capacity and the force of the person to meet the difficulties of regular day to day existence. Sun gives us vitality and the power of resistance and immunity. It is responsible for our physical make up the body's constitution. The sun gives life force, the power of will, brilliance, intelligence, cheerfulness, prosperity, fortune, wisdom and the knowledge of medicine.
As the Sun advances light, so it delivers life. This planet speaks to the self, one's identity and sense of self, the soul and what it is that makes the individual interesting. It is our character and our face to the world.