bāhya-ābhyantara-viṣaya-ākṣepī caturthaḥ The fourth state [of prāṇāyāma] transcends the field of exhalation and inhalation Logic dictates...

Yoga sutra 2.50 bāhya-ābhyantara-stambha-vṛttiḥ-deśa-kāla-saṁkhyābhiḥnparidṛṣṭaḥ dīrgha-sūkṣmaḥ By observing the actions of exhalation,...

tasmin-sati śvāsa-praśvāsayoḥ-gati-vicchedaḥ prāṇāyāmaḥ Having accomplished this [asana], mastery of the breath is required by...

Yoga sutra 2.29 yama-niyama-āsana-prāṇāyāma- pratyāhāra-dhāraṇā-dhyāna-samādhayaḥ-aṣṭau-aṅgāni The eight limbs of yoga are social...