The spiritual master and Krishna are two parallel lines. The train, on two tracks, moves forward. The spiritual master and Krishna are like these two tracks, they must be served simultaneously. Krishna helps one to find bona fide spiritual master and bona fide spiritula Master helps one to understand Krishna. If one does not get bona fide spiritual master, then how he can ever understand Krishna? You cannot serve Krishna without spiritual master, or serve just spiritual master without serving Krishna. They must be served simultaneously. — Letter to Mahapurusha, 12th Feb, 1968.
Every living being is anxious for full freedom because that is his transcendental nature. And this freedom is obtained only through the transcendental service of the Lord.
Srimad Bhagavatam 1.6.37,
We come to Vrindavan not to enjoy a vacation, but we come here to serve. We come here to surrender and to get purified by chanting and performing any type of seva in the association of devotees.
One who acts to serve Krishna with his body, mind, intelligence and words is a liberated soul, even within this material world.
There may rivalries and apparent competitions between servants in performing service, but in the Vaikuntha planets the service of another servant is appreciated not condemned. This is Vaikuntha competition. — Srimad Bhagavatam, 07.05.12.
As dalliance with the body in luxury increases, so wanes the spirit of service of the Lord.