Srimad Bhagavatam Canto 03, Chapter 13, Text 13

SB 3.13.13

yesam na tusto bhagavan
 yajña-lingo janardanah
tesam sramo hy aparthaya
 yad atma nadrtah svayam
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The Supreme Personality of Godhead, Janardana [Lord Krsna], is the form to accept all the results of sacrifice. If He is not satisfied, then one’s labor for advancement is futile. He is the ultimate Self, and therefore one who does not satisfy Him certainly neglects his own interests.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Brahma is deputed as the supreme head of universal affairs, and he in his turn deputes Manu and others as charges d’affaires of the material manifestation, but the whole show is for the satisfaction of the Supreme Personality of Godhead. Brahma knows how to satisfy the Lord, and similarly persons engaged in the line of Brahma’s plan of activities also know how to satisfy the Lord. The Lord is satisfied by the process of devotional service, consisting of the ninefold process of hearing, chanting, etc. It is in one’s own sell-interest to execute prescribed devotional service, and anyone who neglects this process neglects his own self-interest. Everyone wants to satisfy his senses, but above the senses is the mind, above the mind is the intelligence, above the intelligence is the individual self, and above the individual self is the Superself. Above even the Superself is the Supreme Personality of Godhead, visnu-tattva. The primeval Lord and the cause of all causes is Sri Krsna. The complete process of perfectional service is to render service for the satisfaction of the transcendental senses of Lord Krsna, who is known as Janardana.
Srimad Bhagavatam Canto 03, Chapter 13, Text 12
Srimad Bhagavatam Canto 03, Chapter 13, Text 14