स तु दीर्घकालनैरन्तर्यसत्कारासेवितो दृढभूमिः ॥ १.१४॥
sa tu dīrghakāla nairantarya satkāra-āsevito dr̥ḍhabhūmiḥ ॥1.14॥
It (Abhyasa) becomes firmly grounded by long constant efforts, uninterruptedly, with earnest devotion.
-Patanjali Yoga Sutra 1.14
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