Experiencing Right Things might cure
illness instantly!

Once
when Venerable
Girimananda was sick,
then the
Buddha said to Ven.
Ananda:
If you,
Ananda,
would go to Ven.
Girimananda
& explain to him the 10 experiences,
it may be that
Girimananda's
illness will be cured instantly!
And which are these ten experiences? They are:
1: The
experience of Impermanence, and
inconstancy (Anicca-Saññā).
2: The
experience of No-Self, Egolessness,
and Impersonality (Anatta-Saññā).
3: The
experience of
Disgust, Loathsomeness, and Foulness (Asubha-Saññā).
4: The
experience of Danger, Damage, and Disadvantage (Ādīnava-Saññā).
5: The
experience of Leaving Behind,
Avoiding,
and Giving up (Pahāna-Saññā).
6: The
experience of Disillusion, Dispassion,
and Detachment (Virāga-Saññā).
7: The experience of Ceasing, Stilling, and Final Finishing (Nirodha-Saññā).
8: The
experience of Disappointment with
the entire world (Sabbaloka-Anabhirati-Saññā).
9: The
experience of
Transience of all formations (Sabbasankhāresu
Anicca-Saññā).
10:
The experience of
Breathing
Awareness (Ānāpānasati-Saññā).
Having learnt and fully memorized these ten experiences from the Blessed
Buddha,
the Venerable
Ananda went to the Venerable
Girimananda and recited these
ten
experiences to him. Then as soon as the Venerable
Girimananda heard these ten
experiences explained, his illness instantly subsided! This was thus the way
the Venerable
Girimananda was cured, and could rise from his sick-bed
instantly....
(To
see and know that in advance - a priori - takes a
SammāSamBuddha!)

On the 10 experiences or perceptions:
1:
https://What-Buddha-Said.net/drops/IV/Experiencing_Impermanence.htm
2:
https://What-Buddha-Said.net/drops/IV/Experiencing_Egolessness.htm
3:
https://What-Buddha-Said.net/drops/IV/Experiencing_Disgust.htm
4:
https://What-Buddha-Said.net/drops/IV/Experiencing_Danger.htm
5:
https://What-Buddha-Said.net/drops/IV/Experiencing_Elimination.htm
6:
https://What-Buddha-Said.net/drops/IV/Experiencing_Fading_Away.htm
7:
https://What-Buddha-Said.net/drops/IV/Experiencing_Ceasing.htm
8:
https://What-Buddha-Said.net/drops/IV/Experiencing_Disappointment.htm
9:
https://What-Buddha-Said.net/drops/IV/Experiencing_Universal_Transience.htm
10:
https://What-Buddha-Said.net/drops/IV/Experiencing_the_Breath.htm

Video on detailed explanation of
Ānāpānasati
breathing meditation:
https://www.youtube.com/watch?v=FZLud0Ue7LE
Source (edited extract):
Numerical Discourses of the Buddha.
Anguttara Nikāya
AN 10:60, AN V 108ff.
https://What-Buddha-Said.net/Canon/Sutta/AN/Index.Numerical.htm