Srimad Bhagavatam Canto 1 Chapter 6 Text 35

Canto 1 Chapter 6 Text 35

yamādibhir yoga-pathaiḥ
kāma-lobha-hato muhuḥ
mukunda-sevayā yadvat
tathātmāddhā na śāmyati

TRANSLATION
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.