Wikipedia
Koyash (Tatar: Кояш or Qoyaş, Bashkort: Ҡояш, Uzbek: Quyosh, Uyghur: قۇياش, Turkish: Kuyaş) is the god of sun in Turkic mythology.
Gök Tanrı created the earth with rays of sun light, thus, Koyash took part in the creation of earth. Solar rays are also considered to be "strings" between the sun and the spirits of plants, animals and humans.
Turks who worship Koyash turn towards the sunrise when praying. Koyash is the son of Gok Tengri "Sky God" (Tenger means sky in Mongolian) and the Earth Goddess. The power and vital force of the Sun God, making it a priority to bow to him each morning as he rises. Solar rays are strings that link the spirits of plants to heaven, and considered a medium for transmitting Tengri into infants. Koyash is often depicted as a fiery bird or a winged horse. These images are often used to adorn things such as ceramic pots and earrings in ancient times.
The sun god Koyash can make "solar strands" from his hands capable of ensnaring and burning his victims. To the Altai people, the sun represented light, warmth, and growth. This made the sun deity very important, as the sun was seen as the ruler of all that he created. Then he is portrayed as a warrior.