Patanjali Yoga Sutra 1.14

Sanskrit Sutra

स तु दीर्घकालनैरन्तर्यसत्कारासेवितो दृढभूमिः॥१४॥

Swami Vivekananda's translation

It becomes firmly grounded by long constant efforts with great love (for the end to be attained).

Vyasa Bhashya (Sanskrit)

स तु दीर्घकालनैरन्तर्यसत्कारासेवितो दृढभूमिः ॥ १४ ॥

दीर्घकालासेवितो निरन्तरासेवितः सत्कारासेवितः। तपसा ब्रह्मचर्येण विद्यया श्रद्धया च संपादितः सत्कारवान्दृढभूमिर्भवति। व्युत्थानसंस्कारेण द्रागित्येवानभिभूतविषय इत्यर्थः ॥ १४ ॥

Vyasa Bhashya (English Translation)

But it becomes firmly grounded when attended to for a long time, without interruption, and with devotion. || 14 || Attended to for a long time, without interruption, and with devotion (satkara). Accomplished by austerity (tapas), celibacy (brahmacharya), knowledge (vidya), and faith (shraddha), it becomes possessed of devotion and becomes firmly grounded. This means its object is not quickly overpowered by the latent impressions of emergence (vyutthana - wandering state).

Chapter link: Yoga Sutra Chapter 1