The Twin Truths won by keen Dual Consideration:
The blessed Buddha once said:
Friends, the first consideration is:
arises, all this Suffering does so
caused by Feeling!
Another consequent consideration is:
By ending all Feeling,
there cannot therefore ever arise any
Repeatedly seeing both pleasant,
painful and neutral feeling all fade away,
and instantly vanish in each moment, one is freed for passion for feeling!
By quenching craving for feeling one becomes all cool
and quite calmed...
Considering these twin truths cautiously, resolutely
one may either enter the state of Nibbāna right here
and now in this life,
or if there is lasting traces of clinging left, the state of a non-returner...
Those who neglect understanding Feeling, the origin of Feeling,
of Feeling, and how Feeling is completely eliminated,
thus incapable of
understanding, are thus incapable of mental
knowledge, and are thus incapable
the round of birth, ageing, decay, sickness & death
While those who
undertake understanding of Feeling,
Origin, End and Way,
are quite capable of mental release by understanding,
and capable of making
an end... They are near the deathless dimension!
Source: The Bundle of Threads.
The Sutta-Nipāta 724-765
Dual Consideration of the Twin Truths: