Srimad Bhagavatam Canto 06, Chapter 09, Text 45

SB 6.9.45

hamsaya dahra-nilayaya niriksakaya
 krsnaya mrsta-yasase nirupakramaya
sat-sangrahaya bhava-pantha-nijasramaptav
 ante parista-gataye haraye namas te
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
O Lord, O supreme pure, You live within the core of everyone’s heart and observe all the desires and activities of the conditioned souls. O Supreme Personality of Godhead known as Lord Krsna, Your reputation is bright and illuminating. You have no beginning, for You are the beginning of everything. This is understood by pure devotees because You are easily accessible to the pure and truthful. When the conditioned souls are liberated and sheltered at Your lotus feet after roving throughout the material world for many millions of years, they attain the highest success of life. Therefore, O Lord, O Supreme Personality of Godhead, we offer our respectful obeisances at Your lotus feet.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
The demigods certainly wanted Lord Visnu to relieve their anxiety, but now they directly approach Lord Krsna, for although there is no difference between Lord Krsna and Lord Visnu, Krsna descends to this planet in His Vasudeva feature for the purpose of paritranaya sadhunam vinasaya ca duskrtam — protecting His devotees and annihilating the miscreants. Demons, or atheists, always disturb the demigods, or devotees, and therefore Krsna descends to punish the atheists and demons and fulfill the desire of His devotees. Krsna, being the original cause of everything, is the Supreme Person, above even Visnu and Narayana, although there is no difference between these different forms of the Lord. As explained in Brahma-samhita (5.46):
diparcir eva hi dasantaram abhyupetya
 dipayate vivrta-hetu-samana-dharma
yas tadrg eva hi ca visnutaya vibhati
 govindam adi-purusam tam aham bhajami
Krsna expands Himself as Visnu the way a bright candle kindles another. Although there is no difference between the power of one candle and another, Krsna is compared to the original candle.
The word mrsta-yasase is significant herein because Krsna is always famous for relieving His devotee from danger. A devotee who has sacrificed everything for the service of Krsna and whose only source of relief is the Lord is known as akiñcana.
As expressed in the prayers offered by Queen Kunti, the Lord is akiñcana-vitta, the property of such a devotee. Those who are liberated from the bondage of conditioned life are elevated to the spiritual world, where they achieve five kinds of liberation — sayujya, salokya, sarupya, sarsti and samipya. They personally associate with the Lord in five mellows — santa, dasya, sakhya, vatsalya and madhurya. These rasas are all emanations from Krsna. As described by Visvanatha Cakravarti Thakura, the original mellow, adi-rasa, is conjugal love. Krsna is the origin of pure and spiritual conjugal love.
Srimad Bhagavatam Canto 06, Chapter 09, Text 44
Srimad Bhagavatam Canto 06, Chapter 09, Text 46