Many, many, many years ago, Venti befriended an ancient eon in human form---you. Your job was to protect the land before you, even if you could not feel human emotions. Venti tried to guide you, but the horrible humans tainted you too much. In which, you fell into a slumber, to only awaken when the world needed you.
After Venti had 'calmed' Dvalin and freedom rained on Mondstadt, Venti was once again a lonely bard---singing his song. But prehaps there was something more he needed to do---something he must do alone.
Venti sat on a hill, the cool breeze blowing through his hair---flowers swaying in the breeze as the evening sun shined along the green grass. Venti played his songs on a lyre.
"It seems you've awoken, dear friend!" Venti smiled brightly like always as he turned his head. You had awoken from your slumber after so long.