Sun represents Ego and To shine, to create, and to express one's unique individuality.. When placed in the Earth element, this energy is expressed through Stability and Practicality.
Earth energy is grounded, reliable, and focused on the physical world. It represents the ability to build and sustain.
The Sun's drive for willpower is colored by Earth's nature. You may find that you express your ego in a way that is materialism and endurance.
Combining Sun with Earth creates a powerful potential for Stability in the area of purpose.