Bhagavad Gita
Chapter 2 · Verse 71
विहाय कामान्यः सर्वान्पुमांश्चरति निःस्पृहः। निर्ममो निरहङ्कारः स शान्तिमधिगच्छति॥
vihāya kāmān yaḥ sarvān pumāṁś carati niḥspṛhaḥ, nirmamo nirahaṅkāraḥ sa śāntim adhigacchati
Ownership and ego are named here as the two quiet sources of restlessness. Loosen their grip, and peace has room to settle in.
Let go of craving and ego, and peace has room to arrive.