(Click to enlarge vintage painting of Krishna and Arjuna)
"Īśāvāsyam idaṁ sarvam (Īśo 1). Everything belongs to God; nothing belongs to us. This is Bhāgavata communism. As the communists, they say, 'Everything belongs to the state,' we say 'Everything belongs to God.' We never say that anything belongs to anyone. No. This is Bhāgavata communism. So everything belongs to God. So one can utilize God's property as much as he requires, not more than that. Then he will be thief, he will be punishable. Just like father's property. Each and every son has got the right to live at the father's protection. Mā gṛdhaḥ kasya svid dhanam. That is spiritual communism. Whatever wealth is there within this universe, all belong to God, and we are, as sons of God, we have got right to take advantage of this wealth, but not more than what I require. That's all. This is spiritual communism. If you take more, then you become punishable. This is the law of nature.
Therefore our aim of life should be to understand that every..., to know... This is self-realization, that everything belongs to God. Nothing belongs to us. This is self-realization. I also belong to God. My, this body made of five elements, gross body... Bhūmir āpo 'nalo vāyuḥ (BG 7.4), earth, water, fire, air, sky. This is gross body. And subtle body, khaṁ mano buddhir eva, mind, intelligence, ego. These eight. Kṛṣṇa says, bhinnā me prakṛtir aṣṭadhā: 'These eight kind of prakṛti, they are My energy. They are My energy.' So this whole universe is creation of Kṛṣṇa's material energy.
We are marginal energy of Kṛṣṇa. So we are now put into this material energy because we wanted to enjoy this material world. In the spiritual world the only enjoyer is Kṛṣṇa, either in spiritual or material world, He is the only enjoyer. That is stated in the Bhagavad-gītā, bhoktāraṁ yajña-tapasāṁ sarva-loka-maheśvaram (BG 5.29). 'I am the enjoyer.' So this is to be understood, that He is the supreme enjoyer. He is also enjoyer of My energy. Because my energy is derived from Kṛṣṇa's energy. Just like master and servant. The master is paying him food, anything for comforts. He is getting energy. So how the energy should be utilized? For the master, not for his sense gratification. This is perfection of life. You produce anything by your energy, but you cannot use it for your sense gratification. Then you become perfect. And if you want to do it, then Hṛṣīkeśa, the master of the senses, will give you intelligence how to do it. Just like He is giving Arjuna intelligence. Therefore He is mentioned as Hṛṣīkeśa. How to win victory? How to utilize his energy for Kṛṣṇa? Kṛṣṇa wanted the battle. Arjuna was a military man. He utilized his military strength for Kṛṣṇa's purposes. That is the perfection of life.
So whatever you have got, if you utilize it for Kṛṣṇa's sake, hṛṣīkeṇa hṛṣīkeśa-sevanaṁ bhakti (CC Madhya 19.170), that is bhakti. Even by fighting, you can be a great devotee, just like Arjuna. He was not chanting on the beads, but he was fighting. But still, bhakto 'si priyo 'si me (BG 4.3). Kṛṣṇa says, 'Oh, you are My great devotee.' Now people, may say that 'He was not chanting. He was fighting. How he became a great devotee?' But Kṛṣṇa says, bhakto 'si priyo 'si me: 'You are My dear friend. You are My devotee. Because you are utilizing your energy for Me.' So bhakti means you utilize your energy for Kṛṣṇa. Then your life is perfect."
(Srila Prabhupada Lecture, London, July 15, 1973)