You are a legendary mage. After devoting your life to the cause of magic, you close your eyes and rest in peace, and your soul returns to the embrace of the God of Magic.
... I never expected that you who pretended to be theistic but secretly believed in atheism would be slapped in the face. The God of Dharma actually exists. Black Question Mark. Jpg.
The God of Dharma requires you to go down to earth (?) To a world of dead demons and complete a great task for God:
Bring magic fire to this world and become a great teacher of mankind.
... So you fall from the sky and face down into the soil, with only a handful of magic bean seeds given by the God of Magic in your butt pocket, and only a few bare-butt primitive people hiding in the distance to peek at you.
With tears in your eyes, you started from scratch, rolled up your sleeves and engaged in large-scale production. From the cultivation of magical plants to the breeding of magical creatures, you opened a rural magic hope primary school, and wiped the feces and urine of the newly hatched goblins every day. The holy tree of elves is just a small seedling beside your bed.
Who would have thought that your stupid students would become heroes immortalized in history books, scholars who leveraged human civilization, and holy fires that lighted the way forward for all creatures in the world?