What is the Deathless
State?

A certain not very well known Bhikkhu once
asked the Blessed Buddha:
Venerable Sir, the
removal of Greed, Hate, and Ignorance, is it often said...
What, Venerable Sir,
is the real meaning of that statement?
This removal of Greed, Hate,
& Ignorance is a description of the dimension
of
Nibbāna...The final elimination of the
mental fermentations is spoken of
just
like that...

Then that Bhikkhu asked the Blessed One:
Venerable Sir, the
Deathless, the Deathless, is it often said...
What, Sir, is this Deathless,
and what is the way leading to this Deathless?
The destruction of Greed,
of Hate, and the destruction of Ignorance:
This is called the Deathless. The
Noble 8-fold Way is the way leading to
this
Deathless;
that is:
Right View
(sammā-ditthi)
Right
Motivation (sammā-sankappa)
Right
Speech (sammā-vācā)
Right
Action (sammā-kammanta)
Right
Livelihood (sammā-ājīva)
Right
Effort (sammā-vāyāma)
Right
Awareness (sammā-sati)
Right
Concentration (sammā-samādhi)

Bhikkhu, I will teach
you the taintless ... the real truth ... the far shore ...
... the subtle ... the very difficult to see ... the unageing ... the
stable ...
... the not disintegrating ... the unmanifested ... the unproliferated ...
... the peaceful ... the deathless ... the sublime ... the auspicious
...
... the secure ... the destruction of craving ... the wonderful ...
... the amazing ... the unailing ... the undecaying state ...
... the unafflicted ... disillusion ... purity ... freedom ...
... the unadhesive ... the island ... the safe shelter ...
... the asylum
... the refuge ... the destination ...
... the ultimate goal ...
Nibbāna

More on the
Deathless Dimension:
https://What-Buddha-Said.net/drops/II/The_Deathless_Dimension.htm
https://What-Buddha-Said.net/drops/III/Desireless_is_Deathless.htm
Source (edited extract):
The Grouped Sayings of the Buddha.
Samyutta Nikāya.
Book [V:8] section 45:7 A certain Bhikkhu ...
http://store.pariyatti.org/Connected-Discourses-of-the-Buddha_p_1379.html
https://What-Buddha-Said.net/library/ati_website/html/tipitaka/sn/index.html