It is true that by practicing restraint of the senses by the yoga system one can get relief from the disturbances of desire and lust, but this is not sufficient to give satisfaction to the soul, for this [satisfaction] is derived from devotional service to the Personality of Godhead.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
एतद्ध्यातुरचित्तानां मात्रास्पर्शेच्छया मुहुः । भवसिन्धुप्लवो दृष्टो हरिचर्यानुवर्णनम्
etaddhyāturacittānāṃ mātrāsparśecchayā muhuḥ | bhavasindhuplavo dṛṣṭo haricaryānuvarṇanam
SB 1.6.35