I know this ancient god

This is an era in which the ancient gods are gradually resurrecting. Evidence of the existence of the ancient gods is constantly being discovered on every planet in the universe, and even the ruins of their slumber, as well as signs that they are about to awaken.
In a history class, the protagonist Tang Xuan stared at the symbols drawn by the teacher on the blackboard in a daze. He thought to himself, isn't this the ancient god logo he registered in the game yesterday?
Teacher: "Students, this ancient god has a secret. It is said that as long as you crack this secret, you can get his blessings. Many archaeologists have invested decades of time and energy in this, but they have not cracked it yet."
Tang Xuan's shoulders were shaking. He had only one question. Where can I get the divine grace?