Lord Caitanya rejected the varṇāśrama-dharma and the offering of fruitive activity because in the field of executing pure devotional service, there is very little use for such principles. Without self-realization, the artificial methods of devotional service cannot be accepted as pure devotional service. Self-realized pure devotional service is completely different from all other kinds of transcendental activity. The highest stage of transcendental activity is always free from all material desires, fruitive efforts and speculative attempts at knowledge. The highest stage concentrates on the simple, favorable execution of pure devotional service.
Rāmānanda Rāya could understand the motive of Lord Caitanya; therefore he stated that attainment of pure love of Godhead is the highest perfectional stage. There is a very nice verse in Padyāvalī which is said to be composed by Rāmānanda Rāya himself. The purport of the verse is: "As long as there is hunger in the belly and one feels like eating and drinking, one can become happy by taking anything eatable. Similarly, there may be much paraphernalia for worshiping the Supreme Lord, but when that is mixed with pure love of Godhead, it becomes an actual source of transcendental happiness." Rāmānanda Rāya also composed another verse which stated that even after millions and millions of births one cannot achieve a sense of devotional service, but if, somehow or other, one desires to attain devotional service, the association of a pure devotee will render it possible. Thus one should have a strong desire to engage in devotional service. In these two verses, Rāmānanda Rāya has described the regulative principles and developed love of Godhead. Lord Caitanya wanted to bring him to the stage of developed love of Godhead, and He wanted him to speak from that platform. Thus the discussion between Rāmānanda Rāya and Lord Caitanya proceeds on the basis of love of Godhead.
If love of Godhead is elevated to the personal platform, it is called prema-bhakti. In the beginning of prema-bhakti, a particular relationship between the Supreme Lord and the devotee is not established, but when prema-bhakti develops, a relationship with the Supreme Lord is manifested in different transcendental flavors. The first stage is that of servitude, wherein the Supreme Lord is accepted as the master and the devotee as the eternal servitor. When Lord Caitanya accepted this process, Rāmānanda Rāya described the relationship between the servitor and the master. As described in Śrīmad-Bhāgavatam (9.5.16), Durvāsā Muni, a great mystic yogī who considered himself very elevated, envied Mahārāja Ambarīṣa, who was known as the greatest devotee of the time. In an attempt to harass Mahārāja Ambarīṣa, Durvāsā Muni met with a great catastrophe and was defeated by the sudarśana-cakra of the Lord. Durvāsā Muni admitted his fault and said, "For pure devotees who are always engaged in the transcendental loving service of the Lord, nothing is considered impossible, for they are engaged in the service of the Supreme Lord, whose very name is sufficient for liberation."
In Stotra-ratna (46), Yāmunācārya writes: "My Lord, those who keep themselves independent of Your service are helpless. They work on their own account, and they receive no support from superior authority. Therefore I long for the time when I shall engage fully in Your transcendental loving service without any desire for material satisfaction and without being confined to the mental plane. Only when I engage in such unalloyed devotional service will I enjoy actual spiritual life."