Even as a tortoise draws in its limbs, the wise can draw in their senses at will. Aspirants abstain from sense pleasures, but they still crave for them. These cravings all disappear when they see the highest goal. Even of those who tread the path, the stormy senses can sweep off the mind. They live in wisdom who subdue their senses and keep their minds ever absorbed in me.
Bhagavad Gita 2:58-61