To get the Divine Bridle in Genshin Impact, you need to complete the world quest Hyperion’s Dirge – this tasks you with finding and presenting three offering stones, obtained by completing quests around the new Enkanomiya region.
To complete these quests, you need to locate and place Key Sigils in Genshin Impact – these are small ruins found in circles in Enkanomiya, and are visible on the map as rock formations. Once you’ve successfully collected the offering stones, you’re rewarded with Divine Bridle, an item that’s vital to continuing The Phaethon’s Syrtos quest.
To obtain the Divine Bridle in Genshin Impact, first, talk to Aberaku, a spirit located around Enkanomiya. To find him, head to Dainichi Mikoshi, and light the two torches to reveal a hidden passage behind the chest, which is guarded by two ruin guards. You need to use Evernight for Aberaku to appear; after speaking to him, you receive the Hyperion’s Dirge quest, which requires you to find three offering stones to continue.