Rendering Eternal Service - Prabhupada 0539
660219 - Lecture BG Introduction - New York
A Hindu may change his faith to become a Muslim, or a Muslim may change his faith to become a Hindu or a Christian, etc., but in all circumstances such change of religious faith does not allow a person to change his eternal engagement of rendering service to other.
A Hindu or a Muslim or a Christian, in all circumstances he is servant of somebody, and thus to profess a particular type of faith is not to be considered as sanātana-dharma, but the constant companion of the living being, that is, rendering of service, is the sanātana-dharma.