坐禪三昧經 2.82

2.82

Grasping conditions becoming. What is becoming? Three kinds of becoming: desire-becoming, form-becoming, and formless-becoming. From the great Avīci hell below up to the Heaven of Controlling Emanations by Others is called desire-becoming, along with the karma capable of generating it. What is form-becoming? From the Brahmā world below up to the Akaniṣṭha Heaven is called form-becoming. What is formless-becoming? From the [sphere of empty] space up to the sphere of neither perception nor non-perception is called formless-becoming.