Friends:

What is the Mental Ability of Awareness?

The Blessed Buddha once explained:
Bhikkhus, there are these five mental abilities (indriya). What five?

The ability of Faith (saddhā)
The ability of Energy (viriya)
The ability of Awareness (sati)
The ability of Concentration (samādhi)
The ability of Understanding (pañña)

But what is the mental ability of Awareness (Sati)?
That which is awareness, constant attention, recollection, mental presence,
mindfulness, remembering, bearing in mind, alertness, watchful consciousness,
non-neglect, non-obliviousness, non-forgetfulness, non-carelessness, and acute
non-superficiality. This is called the ability and the power of awareness,
Right Awareness, and the Awareness link to Awakening!

But what is this Awareness link to Awakening?
Herein a Bhikkhu is mindful, endowed with excellent awareness & recollection, he remembers,
remembers constantly, what has been done, and what has been said concerning release even
very long ago. This is called the Awareness link to Awakening...
There is awareness of internal states, and there is awareness of external states. Both the
awareness of all internal states and awareness of all external states is an Awareness link to
Awakening leading to knowledge, to Enlightenment, and to complete emancipating release!

The Power of Presence!

On this illuminating & crucial presence of Awareness:
https://What-Buddha-Said.net/drops/Sati_Studies.htm
https://What-Buddha-Said.net/drops/Causes_of_sati.htm
https://What-Buddha-Said.net/drops/III/Sati_Summary.htm
https://What-Buddha-Said.net/drops/IV/Sati_in_Solitude.htm
https://What-Buddha-Said.net/drops/III/Awareness_Sati.htm
https://What-Buddha-Said.net/drops/Clear_Comprehension.htm
https://What-Buddha-Said.net/drops/III/Noble_Awareness.htm
https://What-Buddha-Said.net/drops/III/One_and_only_Way.htm
https://What-Buddha-Said.net/drops/III/Feeding_Awareness.htm
https://What-Buddha-Said.net/drops/III/Awareness_Analysis.htm
https://What-Buddha-Said.net/drops/IV/Sati_a_la_Anuruddha.htm
https://What-Buddha-Said.net/drops/What_is_Right_Awareness.htm
https://What-Buddha-Said.net/drops/II/Careful_and_Rational_Attention.htm
https://What-Buddha-Said.net/drops/III/Four_Foundations_of_Awareness.htm
https://What-Buddha-Said.net/drops/III/Clear_and_Aware_Comprehension.htm

Source:  The Book of Analysis: Vibhanga  124 + 228
https://store.pariyatti.org/Book-of-Analysis_p_1905.html