Carrier (CC and Other Books)
Sri Caitanya-caritamrta
CC Adi-lila
CC Adi 8.19, Translation and Purport:
(The great sage Śukadeva said:) “My dear Mahārāja Parīkṣit, the Supreme Personality of Godhead Kṛṣṇa is always ready to help you. He is your master, guru, God and very dear friend, and also the head of your family. Yet sometimes He agrees to act as your family's servant or order-carrier. You are greatly fortunate because this relationship is possible only by bhakti-yoga. The Lord can give liberation (mukti) very easily, but He does not very easily give one bhakti-yoga, because by that process He is bound to the devotee.”
This passage is a quotation from Śrīmad-Bhāgavatam (5.6.18). While Śukadeva Gosvāmī was describing the character of Ṛṣabhadeva, he distinguished between bhakti-yoga and liberation by reciting this verse.