Bhagavad Gita Chapter 02, Text 71

Bg 2.71

vihaya kaman yah sarvan
pumams carati nihsprhah
nirmamo nirahankarah
sa santim adhigacchati

Word for word: 
vihaya — giving up; kaman — material desires for sense gratification; yah — who; sarvan — all; puman — a person; carati — lives; nihsprhah — desireless; nirmamah — without a sense of proprietorship; nirahankarah — without false ego; sah — he; santim — perfect peace; adhigacchati — attains.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
A person who has given up all desires for sense gratification, who lives free from desires, who has given up all sense of proprietorship and is devoid of false ego – he alone can attain real peace.

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
To become desireless means not to desire anything for sense gratification. In other words, desire for becoming Krishna conscious is actually desirelessness. To understand one’s actual position as the eternal servitor of Krishna, without falsely claiming this material body to be oneself and without falsely claiming proprietorship over anything in the world, is the perfect stage of Krishna consciousness. One who is situated in this perfect stage knows that because Krishna is the proprietor of everything, everything must be used for the satisfaction of Krishna. Arjuna did not want to fight for his own sense satisfaction, but when he became fully Krishna conscious he fought because Krishna wanted him to fight. For himself there was no desire to fight, but for Krishna the same Arjuna fought to his best ability. Real desirelessness is desire for the satisfaction of Krishna, not an artificial attempt to abolish desires. The living entity cannot be desireless or senseless, but he does have to change the quality of the desires. A materially desireless person certainly knows that everything belongs to Krishna (isavasyam idam sarvam), and therefore he does not falsely claim proprietorship over anything. This transcendental knowledge is based on self-realization – namely, knowing perfectly well that every living entity is an eternal part and parcel of Krishna in spiritual identity, and that the eternal position of the living entity is therefore never on the level of Krishna or greater than Him. This understanding of Krishna consciousness is the basic principle of real peace.