योगश्चित्तवृत्तिनिरोधः
yogaś citta-vṛtti-nirodhaḥ
Yoga is the stilling of the fluctuations of the mind.
Sutra 1.2
तदा द्रष्टुः स्वरूपेऽवस्थानम्
tadā draṣṭuḥ svarūpe 'vasthānam
Then the seer rests in its own true nature.
Sutra 1.3
स तु दीर्घकालनैरन्तर्यसत्कारासेवितो दृढभूमिः
sa tu dīrgha-kāla-nairantarya-satkārāsevito dṛḍha-bhūmiḥ
Practice becomes firmly grounded when tended for a long time, without interruption, and with devotion.
Sutra 1.14
मैत्रीकरुणामुदितोपेक्षाणां भावनातश्चित्तप्रसादनम्
maitrī-karuṇā-muditopekṣāṇāṁ bhāvanātaś citta-prasādanam
The mind grows clear by cultivating friendliness, compassion, gladness, and equanimity.
Sutra 1.33
तपःस्वाध्यायेश्वरप्रणिधानानि क्रियायोगः
tapaḥ-svādhyāyeśvara-praṇidhānāni kriyā-yogaḥ
Discipline, self-study, and surrender together form the yoga of action.
Sutra 2.1
स्थिरसुखमासनम्
sthira-sukham āsanam
The posture is steady and comfortable.
Sutra 2.46
ततो द्वन्द्वानभिघातः
tato dvandvānabhighātaḥ
Then one is no longer shaken by the pairs of opposites.
Sutra 2.48
यमनियमासनप्राणायामप्रत्याहारधारणाध्यानसमाधयोऽष्टावङ्गानि
yama-niyamāsana-prāṇāyāma-pratyāhāra-dhāraṇā-dhyāna-samādhayo 'ṣṭāv aṅgāni
Restraint, observance, posture, breath regulation, withdrawal, concentration, meditation, and absorption: these are the eight limbs of yoga.
Sutra 2.29