The "eye of heaven" is a poetic term used to refer to the sun. It alludes to the sun's importance in providing light and warmth to the Earth. While this phrase is the most common way to refer to the sun in literature and poetry, there are several other synonyms that can be used as well. These include "golden orb," "radiant star," "solar disk," and "celestial fireball." Each of these terms highlights a different aspect of the sun, emphasizing its luminosity, radiant energy, and importance in the cosmos. Ultimately, whether one uses the traditional "eye of heaven" or one of its many synonyms, the sun remains a powerful and essential part of our world.