The Buddha says: Saha.
The three thousand great thousand worlds are Saha, the Jambudvipa where we live.
The beings of this realm endure the ten evils and every kind of affliction, yet refuse to leave it.
A Buddhist scripture, The Sutra of the Buddha's Slander, is called the source of all the world's evils.
The inner demon is born from it, as the ten evils and five realms mingle in the heart, taking root in the bloodline.
Thus is the human demon born.
