DiscoverSNSN 45–56SN 45SN 45.90

The Buddha teaches on accomplishment in rational application of mind (2nd), showing how a mendicant develops and cultivates the noble eightfold path with factors that rely on seclusion, fading away, and cessation, ripening as letting go.

SN 45.90 Accomplishment in Rational Application of Mind (2nd)

“Yathayidaṁ, bhikkhave, yonisomanasikārasampadā. Yonisomanasikārasampannassetaṁ, bhikkhave, bhikkhuno pāṭikaṅkhaṁ—ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāvessati, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkarissati.

Kathañca, bhikkhave, bhikkhu yonisomanasikārasampanno ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāveti, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkaroti? Idha, bhikkhave, bhikkhu sammādiṭṭhiṁ bhāveti rāgavinayapariyosānaṁ dosavinayapariyosānaṁ mohavinayapariyosānaṁ …pe… sammāsamādhiṁ bhāveti rāgavinayapariyosānaṁ dosavinayapariyosānaṁ mohavinayapariyosānaṁ. Evaṁ kho, bhikkhave, bhikkhu yonisomanasikārasampanno ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāveti, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkarotī”ti.

Sattamaṁ.

Dutiyaekadhammapeyyālaṁ.

Tassuddānaṁ

Kalyāṇamittaṁ sīlañca,
chando ca attasampadā;
Diṭṭhi ca appamādo ca,
yoniso bhavati sattamaṁ.

Reference Translation by Bhikkhu Sujato (CC0).

“Yathayidaṁ, bhikkhave, yonisomanasikārasampadā.

“… accomplishment in rational application of mind.

Yonisomanasikārasampannassetaṁ, bhikkhave, bhikkhuno pāṭikaṅkhaṁ—ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāvessati, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkarissati.

A mendicant accomplished in rational application of mind can expect to develop and cultivate the noble eightfold path.

Kathañca, bhikkhave, bhikkhu yonisomanasikārasampanno ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāveti, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkaroti?

And how does a mendicant accomplished in rational application of mind develop and cultivate the noble eightfold path?

Idha, bhikkhave, bhikkhu sammādiṭṭhiṁ bhāveti rāgavinayapariyosānaṁ dosavinayapariyosānaṁ mohavinayapariyosānaṁ …pe… sammāsamādhiṁ bhāveti rāgavinayapariyosānaṁ dosavinayapariyosānaṁ mohavinayapariyosānaṁ.

It’s when a mendicant develops right view, right purpose, right speech, right action, right livelihood, right effort, right mindfulness, and right immersion, which culminate in the removal of greed, hate, and delusion.

Evaṁ kho, bhikkhave, bhikkhu yonisomanasikārasampanno ariyaṁ aṭṭhaṅgikaṁ maggaṁ bhāveti, ariyaṁ aṭṭhaṅgikaṁ maggaṁ bahulīkarotī”ti.

That’s how a mendicant accomplished in rational application of mind develops and cultivates the noble eightfold path.”

Sattamaṁ.

Dutiyaekadhammapeyyālaṁ.

Tassuddānaṁ

Kalyāṇamittaṁ sīlañca,

chando ca attasampadā;

Diṭṭhi ca appamādo ca,

yoniso bhavati sattamaṁ.

Qualities:

Delusion

Delusion

☁️ dark quality

A fundamental distortion of reality that sustains confusion, clouds discernment, and fuels further doubt.

Also known as: illusion, hallucination, misapprehension, distorted view
Pāli: moha, micchāñāṇa
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Mindfulness

Mindfulness

☀️ bright quality

Active presence of mind and lucid retention; the faculty that remembers the Dhamma, anchors attention to the chosen object or present experience, and guards the mind against unwholesome states.

Also known as: recollecting, remembering, keeping in mind, presence, awareness
Pāli: sati, anussati
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Right effort

Right effort

☀️ bright quality

Energy and resolve directed toward preventing unwholesome states from arising, abandoning arisen unwholesome states, cultivating wholesome states, and maintaining arisen wholesome states; persistent application of the mind aligned with the path.

Also known as: right endeavor, right striving
Pāli: sammāvāyāma, padhāna
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Right livelihood

Right livelihood

☀️ bright quality

Means of living that does not cause harm to others or oneself; earning a living ethically without deceit, exploitation, or violence.

Also known as: correct livelihood, right mode of earning a living
Pāli: sammāājīva
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Right speech

Right speech

☀️ bright quality

Speech that is purified by abstaining from falsehood, divisive talk, harsh words, and idle chatter.

Also known as: truthful speech, honest speech, kind speech, beneficial speech, harmonious speech, articulate words, eloquent communication
Pāli: sammāvācā
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Right view

Right view

☀️ bright quality

View that is in line with the Dhamma — teachings of the Buddha that point to the nature of reality, the ultimate truth.

Also known as: right understanding, right belief, view that is inline with the Dhamma
Pāli: sammādiṭṭhi
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Last updated on July 27, 2026

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