“Mendicants, there are these four bases of psychic power. What four? It’s when a mendicant develops the basis of psychic power that has immersion due to enthusiasm … energy … mental development … inquiry, and active effort. These are the four bases of psychic power. It is because he has developed and cultivated these four bases of psychic power that the Realized One is called ‘the perfected one, the fully awakened Buddha’.”

Linked Discourses 51.9 1. At the Cāpāla Shrine Knowledge

“Mendicants: ‘This is the basis of psychic power that has immersion due to enthusiasm, and active effort.’ Such was the vision, knowledge, wisdom, realization, and light that arose in me regarding teachings not learned before from another. ‘This basis of psychic power … should be developed.’ … ‘This basis of psychic power … has been developed.’ Such was the vision, knowledge, wisdom, realization, and light that arose in me regarding teachings not learned before from another.

‘This is the basis of psychic power that has immersion due to energy, and active effort.’ … ‘This basis of psychic power … should be developed.’ … ‘This basis of psychic power … has been developed.’ Such was the vision, knowledge, wisdom, realization, and light that arose in me regarding teachings not learned before from another.