SN 47.19 selfish sati for mutual protection

 Timeless (un)common sense (AI summary)

The standard instruction provided by flight attendants during the safety briefing is a practical lesson in physics and physiology. While the exact wording varies slightly by airline, it generally follows this format:

"In the event of a decompression, an oxygen mask will automatically drop from the compartment above your head. To start the flow of oxygen, pull the mask firmly toward you. Place it over your nose and mouth, secure the elastic band behind your head, and breathe normally. If you are traveling with a child or someone who requires assistance, secure your own mask first before helping others."

Why the "Self-First" Rule Exists

It can feel counterintuitive to help yourself before a child, but there are critical medical reasons for this protocol:

• Hypoxia Timeline: At high altitudes (around 30,000 feet), the "Time of Useful Consciousness" can be as short as 30 to 60 seconds. If you spend those seconds struggling to fit a mask on a squirming child, you may lose consciousness before you can finish, leaving both of you incapacitated.

• Physical Capability: If you are conscious and breathing, you can easily assist a child who has fainted from lack of oxygen. However, a child cannot typically assist an unconscious adult.

• Efficiency: You are much faster at securing a mask when you aren't lightheaded. Once your mask is on, you are fully equipped to handle any further emergency steps.

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SN 47.19 Sedaka: At Sedaka

19. Sedakasutta	19. At Sedaka
Ekaṃ samayaṃ bhagavā sumbhesu viharati sedakaṃ nāma sumbhānaṃ nigamo.	At one time the Buddha was staying in the land of the Sumbhas, near the town of the Sumbhas called Sedaka.
Tatra kho bhagavā bhikkhū āmantesi:	There the Buddha addressed the monks:
“bhūtapubbaṃ, bhikkhave, caṇḍālavaṃsiko caṇḍālavaṃsaṃ ussāpetvā medakathālikaṃ antevāsiṃ āmantesi:	“Once upon a time, monks, an acrobat set up his bamboo pole and said to his apprentice Medakathālikā:
‘ehi tvaṃ, samma medakathālike, caṇḍālavaṃsaṃ abhiruhitvā mama uparikhandhe tiṭṭhāhī’ti.	‘Come now, dear Medakathālikā, climb up the bamboo pole and stand on my shoulders.’
‘Evaṃ, ācariyā’ti kho, bhikkhave, medakathālikā antevāsī caṇḍālavaṃsikassa paṭissutvā caṇḍālavaṃsaṃ abhiruhitvā ācariyassa uparikhandhe aṭṭhāsi.	‘Yes, teacher,’ she replied. She climbed up the bamboo pole and stood on her teacher’s shoulders.
Atha kho, bhikkhave, caṇḍālavaṃsiko medakathālikaṃ antevāsiṃ etadavoca:	Then the acrobat said to Medakathālikā:
‘tvaṃ, samma medakathālike, mamaṃ rakkha, ahaṃ taṃ rakkhissāmi.	‘You look after me, dear Medakathālikā, and I’ll look after you.
Evaṃ mayaṃ aññamaññaṃ guttā aññamaññaṃ rakkhitā sippāni ceva dassessāma, lābhañca lacchāma, sotthinā ca caṇḍālavaṃsā orohissāmā’ti.	That’s how, guarding and looking after each other, we’ll display our skill, collect our fee, and get down safely from the bamboo pole.’
Evaṃ vutte, bhikkhave, medakathālikā antevāsī caṇḍālavaṃsikaṃ etadavoca:	When he said this, Medakathālikā said to her teacher:
‘na kho panetaṃ, ācariya, evaṃ bhavissati.	‘That’s not how it is, teacher!
Tvaṃ, ācariya, attānaṃ rakkha, ahaṃ attānaṃ rakkhissāmi.	You should look after yourself, and I’ll look after myself.
Evaṃ mayaṃ attaguttā attarakkhitā sippāni ceva dassessāma, lābhañca lacchāma, sotthinā ca caṇḍālavaṃsā orohissāmā’”ti.	That’s how, guarding and looking after ourselves, we’ll display our skill, collect our fee, and get down safely from the bamboo pole.’

“So tattha ñāyo”ti bhagavā etadavoca, “yathā medakathālikā antevāsī ācariyaṃ avoca.	That’s the correct procedure,” said the Buddha. “It’s just as Medakathālikā said to her teacher.
Attānaṃ, bhikkhave, rakkhissāmīti satipaṭṭhānaṃ sevitabbaṃ;	Thinking ‘I’ll look after myself,’ you should cultivate remembering and applying Dharma.
paraṃ rakkhissāmīti satipaṭṭhānaṃ sevitabbaṃ.	Thinking ‘I’ll look after others,’ you should cultivate remembering and applying Dharma.
Attānaṃ, bhikkhave, rakkhanto paraṃ rakkhati, paraṃ rakkhanto attānaṃ rakkhati.	Looking after yourself, you look after others; and looking after others, you look after yourself.

Kathañca, bhikkhave, attānaṃ rakkhanto paraṃ rakkhati?	And how do you look after others by looking after yourself?
Āsevanāya, bhāvanāya, bahulīkammena—	By development, cultivation, and practice of meditation.
evaṃ kho, bhikkhave, attānaṃ rakkhanto paraṃ rakkhati.
Kathañca, bhikkhave, paraṃ rakkhanto attānaṃ rakkhati?	And how do you look after yourself by looking after others?
Khantiyā, avihiṃsāya, mettacittatāya, anudayatāya—	By acceptance, harmlessness, friendliness, and kindness.
evaṃ kho, bhikkhave, paraṃ rakkhanto attānaṃ rakkhati.
Attānaṃ, bhikkhave, rakkhissāmīti satipaṭṭhānaṃ sevitabbaṃ;	Thinking ‘I’ll look after myself,’ you should cultivate remembering and applying Dharma.
paraṃ rakkhissāmīti satipaṭṭhānaṃ sevitabbaṃ.	Thinking ‘I’ll look after others,’ you should cultivate remembering and applying Dharma.
Attānaṃ, bhikkhave, rakkhanto paraṃ rakkhati, paraṃ rakkhanto attānaṃ rakkhatī”ti.	Looking after yourself, you look after others; and looking after others, you look after yourself.”

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