Saṁyutta Nikāya — Discursos Conectados — 51.25 — Fruits (1st)

1“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. Because of developing and cultivating these four bases of psychic power, one of two results can be expected: enlightenment in this very life, or if there’s residue left behind, non-return.”