Yoga Sūtra Chapter One verse 21
It is near for those with intense ardour.tīvra - intensesaṃvega - ardour; excitementāsanna - near
Commentaries and ReflectionsT Krishnamacharya:
There are different grades of inclination and possibility
among those who are interested to experience the state of Samādhi.
It is near for those with intense ardour.