Bhagwad Gita
Chapter 6, Verse 33
अर्जुन उवाच
योऽयं योगस्त्वया प्रोक्तः साम्येन मधुसूदन।
एतस्याहं न पश्यामि चञ्चलत्वात् स्थितिं स्थिराम्।।6.33।।
Arjuna said: O Madhusudana, the system of yoga which you have summarized appears impractical and unendurable to me, for the mind is restless and unsteady.