In Srimad-Bhagavatam it is recommended that one should become a devotee regardless of ones condition. Whether one is without desire (akama) or with desire (sakama), or whether one desires liberation (moksa-kama), he is advised to worship the Supreme Lord and execute devotional service unto Him. By so doing, one attains all perfection in any field of life. The process of devotional serviceespecially hearing and chantingis so powerful that it can bring a person to the perfectional stage. In this verse brahmanas, ksatriyas, vaisyas and sudras are mentioned, but here it should be understood that that reference is to the brahmana who is born in a brahminical family, the ksatriya who is born in a ksatriya family, the vaisya who is born in a vaisya family and the sudra in a sudra family. But whether one is a brahmana, ksatriya, vaisya or sudra, he can attain perfection simply by hearing and chanting.