How does one gain the Mind Reading Ability?

Once when the Venerable
Anuruddha was dwelling at
Savatthi
in Jeta's Grove,
in
Anāthapindika's Park, a number of Bhikkhus went
to
the Venerable
Anuruddha
and exchanged polite
greetings with him.
Then they sat down to one side and then
asked the Ven.
Anuruddha: Venerable
Sir: What has the Venerable Anuruddha
developed and cultivated so
that
he has attained so successfully to his famous
greatness of direct knowledge?
It is, friends, because I have developed and cultivated these four
Foundations of Awareness
that I have won great direct
knowledge.
What four? Here, friends, I dwell constantly contemplating upon:
The
Body only as a formed
material group, neither as I, me, mine, nor any self...
The
Feelings
only as passing emotional responses, neither as I, me, mine, nor any self...
The
Mind
only as temporary moody mentalities, neither as I, me, mine, nor any self...
All
Phenomena
only as constructed mental states, not as substantial existents...
while eager,
clearly comprehending,
and fully
aware, thereby removing
all desire
and frustration rooted in this world!
It is, friends, because
I have developed and
cultivated these
Four
Foundations of Awareness
that I have become empowered
with suprahuman forces: I directly
understand other beings minds, when
having
encompassed them with
my own mind...
I understand a mind
with greed as a mind with greed;
a mind without greed as a
mind without greed; a mind with hate as a
mind with hate; a mind without hate as a
mind without hate; a mind
with ignorance as a mind with ignorance;
a mind without
ignorance
as a mind beyond ignorance; a contracted
and lazy mind as a lazy and all
contracted mind,
and a distracted mind as an agitated and
distracted scatter-mind;
an exalted mind as exalted into jhāna and an unexalted
mind
as unexalted;
a surpassable mind as a surpassable mind and a verily
unsurpassable mind as an
unsurpassable mind; a concentrated mind
as concentrated and an unconcentrated mind
as so unconcentrated;
an unreleased mind as unreleased and a released mind as indeed
all released...

More on the Mind
and the the mind reading
ability (Ceto-pariya-ñāna):
https://What-Buddha-Said.net/drops/II/In_Control.htm
https://What-Buddha-Said.net/drops/II/Non-Control.htm
https://What-Buddha-Said.net/drops/II/Blazing_and_Bright.htm
https://What-Buddha-Said.net/drops/II/The_Core_Duality.htm
https://What-Buddha-Said.net/drops/II/Magnificent_Mind.htm
https://What-Buddha-Said.net/drops/II/Highway_to_Nibbana.htm
https://What-Buddha-Said.net/drops/III/Focusing_on_Mentality.htm
https://What-Buddha-Said.net/drops/IV/Immersing_the_Body_in_the_Mind.htm
Source (edited extract):
The
Grouped Sayings of the Buddha. Samyutta Nikāya.
[V:304]
section 52: Anuruddha. Thread 14: The Encompassing mind!
