The Visa to Vraja -  The Visa to Vraja: Reflections on Rāgānugā-bhakti, Līlā-smaraṇa, & Siddha-praṇālī: Reflections on Rāgānugā-bhakti, Līlā-smaraṇa, & Siddha-Praṇālī We are the followers of Gaurāṅga - Śrī Caitanya Mahāprabhu and the Six Gosvāmīs. They have come to give us harināma-saṅkīrtan and rāgānugā-bhakti(rāga-marga-bhakti loke korite pracārana) - the spontaneous loving devotional service mood of the vrajavāsīs, the eternal associates of Rādhā-Kṛṣṇa in Vraja, especially the gopīs. Rāgānugā-bhakti, līlā-smaraṇa and siddha-praṇālī go hand in hand. Līlā-smaraṇa is the essential practice of rāgānugā-bhakti, the life and soul of pure bhakti. Līlā-smaraṇa is performed in one's guru-given, internally conceived spiritual form called siddha-deha or svarūpa. The process of getting siddha-deha in all the traditional Gauḍīya Vaiṣṇava lines is called siddha-praṇālī, literally meaning the channel of spiritual perfection. There is no question of rāgānugā-bhakti without līlā-smaraṇa and there is no question of progress in līlā-smaraṇa without siddha-praṇālī.
Even though rāgānugā-bhakti is rare and difficult to attain, it is the ultimate spiritual perfection, as stated by Śrīla Rūpa Gosvāmī,

anyābhilāṣitā-śūnyaṁ jñāna-karmādy-anāvṛtam
ānukūlyena kṛṣṇānu śīlanaṁ bhaktir uttamā