When a man professes to belong to a particular type of faith with reference to the particular time and circumstances of birth, and thus one claims to be a Hindu, a Muslim, a Christian, Buddhist, or any other sect, and sub-sect, such designations are non-sanātana-dharma. 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. So factually, we are related in the service relationship with the Supreme Lord. The Supreme Lord is the supreme enjoyer, and we living entities are eternally His supreme servitors.