Quiescent mode Most people think of this when they read the standard four jhāna formula. Dynamic mode of Jhāna (Zen is japanese transliteration of Jhāna) Depending on how energetically intensive your posture and activity is, you won't be able to get 100% jhānic force compared to quiescent mode sitting, but you can get 10-70% partial jhāna in all postures and activities, with persistent training, practice and right view of jhāna according to EBT (early buddhism). The Buddha repeatedly emphasized samādhi all the time, jhāna all the time, but most people don't believe it because they've been taught wrong by popular teachers. You'll never get the full potential of jhāna if you have a wrong and limited understanding of jhāna being something you can only do with quiet and a sitting posture. Worse, if you were taught only 1 in a million serious practitioners can attain the heretical redefined "jhāna" as a disembodied frozen stupor, you'll never even make it ...
SN 47.5 Akusalarāsi: A Heap of the Unskillful (standard 4sp🐘 formula) (translation style SP-FLUENT by frankk ) 5. Akusalarāsisutta 5. A Heap of the Unskillful Sāvatthinidānaṃ. At Sāvatthī. Tatra kho bhagavā etadavoca: There the Buddha said: “‘akusalarāsī’ti, bhikkhave, vadamāno pañca nīvaraṇe sammā vadamāno vadeyya. “Rightly speaking, monks, you’d call these five hindrances a ‘heap of the unskillful’. Kevalo hāyaṃ, bhikkhave, akusalarāsi, yadidaṃ—pañca nīvaraṇā. For these five hindrances are entirely a heap of the unskillful. Katame pañca? What five? Kāmacchandanīvaraṇaṃ, byāpādanīvaraṇaṃ, thinamiddhanīvaraṇaṃ, uddhaccakukkuccanīvaraṇaṃ, vicikicchānīvaraṇaṃ. The hindrances of sensual desire, ill will, dullness and drowsiness, restlessness and remorse, and doubt. ‘Akusalarāsī’ti, bhikkhave, vadamāno ime pañca nīvaraṇe sammā vadamāno vadeyya. Rightly speaking, you’d call these five hindrances a ‘heap of the unskillful’. Kevalo hāyaṃ, bhikkhave, akusalarāsi, yadi...