Five Spiritual Faculties
These are inherent faculties of mind and heart that, when fully developed, lead to the end of suffering.
1. Faith; saddha (Pali)
2. Energy; viriya (Pali)
3. Mindfulness; sati (Pali)
4. Concentration; samadhi (Pali)
5. Wisdom; panna (Pali)
In the Pali Canons Sutta Pitaka, indriya is frequently encountered in the context of the "five spiritual faculties" (Pali: panc indriyani) comprised of:
faith or conviction or belief (saddha)
energy or persistence or perseverence (viriya)
mindfulness or memory (sati)
concentration or focus (samadhi)
wisdom or understanding or comprehension (panna).
Together, this set of five facutlies is one of the seven sets of qualities lauded by the Buddha as conducive to Enlightenment.
In Samyutta Nikaya (SN 48.10) is one of several discourses that charactizes these spiritual faculties in the following manner:
Faith/Conviction is faith in the Buddhas awakening.
Energy/Persistence refers to exertion towards the Four Right Efforts.
Mindfulness refers to focusing on the four satipatthana.
Concentration refers to achieving the four jhanas.
Wisdom/Understanding refers to discerning the Four Noble Truths.
In SN 48.51, the Buddha declares that, of these five faculties, wisdom is the "chief" (agga).