Bhagavad Gita 18.62 · Krishna
Take refuge with your whole heart
तमेव शरणं गच्छ सर्वभावेन भारत।
तत्प्रसादात्परां शान्तिं स्थानं प्राप्स्यसि शाश्वतम्॥
tameva śaraṇaṃ gaccha sarvabhāvena bhāratatatprasādātparāṃ śāntiṃ sthānaṃ prāpsyasi śāśvatam
Take refuge in Him alone, with your whole being, Bharata. By His grace you will reach the highest peace and the eternal home.
What it means
Krishna gives the answer. Take refuge in that Lord alone. With your whole being, sarva-bhavena. Not half-heartedly. By his grace, prasada, you'll find para shanti, the highest peace, and an eternal home. Not earned by effort, but received by trust.
The story
Arjuna has struggled to find peace through reasoning. Krishna says, finally, take refuge. Let yourself be held.
In your life
Think of a child falling asleep in a parent's arms in a noisy room, completely at peace. Tonight, before sleep, imagine being held like that, and let go.
Take refuge, and find peace.