an.7.45 Aṅguttara Nikāya (Numbered Discourses)
Prerequisites for Immersion
“Mendicants, there are these seven prerequisites for immersion.What seven?
Right view, right thought, right speech, right action, right livelihood, right effort, and right mindfulness.
Unification of mind with these seven factors as prerequisites is called noble right immersion ‘with its vital conditions’ and ‘with its prerequisites’.”