The
Way
of the Three Higher
Trainings:

The Blessed Buddha once explained:
There are, Bhikkhus, these 3 kinds of training:
1: Training in Higher Morality
(adhi-sīla-sikkhā)...
2: Training in
Higher Consciousness (adhi-citta-sikkhā)...
3: Training in Higher Understanding
(adhi-pañña-sikkhā)...
What, Bhikkhus, is the training in higher
morality?
Herein the monk is possessed of morality, is fully controlled by the monastic
code
of 227 disciplinary
rules, perfected in pure conduct & behaviour by recoiling from
even the minutest offense, he trains himself in these higher moral training
rules.
This is called the training in higher
morality!
What, Bhikkhus, is the training in higher consciousness?
Herein the monk, secluded from sensual desires, protected from any detrimental
mental state, enters & dwells in the 1st
jhāna of joy & pleasure born of solitude,
in directed & sustained thought. He enters the 2nd, 3rd & 4th absorption
(jhāna).
This is called the training in higher consciousness!
What, Bhikkhus, is the training in higher understanding?
Herein the monk completely understands according to the actual reality:
What
Suffering is, What the
Cause of Suffering is,
What the
Ceasing of Suffering is, and
What the
Way leading to ceasing of Suffering is.
This is called the training in higher understanding!

More on the Noble
8-fold Way:
-
Fruits
of the Noble Way,
Seed_of_Good
,
The_3-fold_Way
-
The Way,
Fulfilled_First,
The_Final_Goal,
The_Three_Trainings
-
Middle
Way,
Failed_by_Neglect,
The_Other_Side
-
Golden_Middle_Way,
The_Three_Searches
-
The_Noble_8-Fold_Way,
Rare_Emergence
,
The_Way
-
The_4th_Noble_Truth_on_The_Way_to_Cease_Suffering

Making Light Shine in a barren place!
Source (edited extract):
Numerical Discourses of the Buddha.
Anguttara Nikāya AN 3:88-89
https://What-Buddha-Said.net/Canon/Sutta/AN/Index.Numerical.htm
