Bhagwad Gita
Chapter 6, Verse 17
युक्ताहारविहारस्य युक्तचेष्टस्य कर्मसु।
युक्तस्वप्नावबोधस्य योगो भवति दुःखहा।।6.17।।
He who is temperate in his habits of eating, sleeping, working and recreation can mitigate all material pains by practicing the yoga system.