Ādi-īīlā, Chapter 7
15
Lord;  kīrtana — saṅkīrtana ;  pracāra —movement;  yāṅ-sabā —persons with whom;  lañā —in accompaniment;  karena —He does;  prema —love of God;  āsvādana —taste;  yāṅ-sabā —those who are;  lañā —in accompaniment;  dāna kare —gives in charity;  prema-dhana —love of Godhead.
TRANSLATION
The internal devotees or potencies are all eternal associates in the pastimes of the Lord. Only with them does the Lord advent to propound the  saṅkīrtana  movement, only with them does the Lord taste the mellow of conjugal love, and only with them does He distribute this love of God to people in general.
PURPORT
Distinguishing between pure devotees and internal or confidential devotees, Śrī Rūpa Gosvāmī, in his book  Upadeśāmṛta , traces the following gradual process of development. Out of many thousands of  karmīs , one is better when he is situated in perfect Vedic knowledge. Out of many such learned scholars and philosophers, one who is actually liberated from material bondage is better, and out of many such persons who are actually liberated, one who is a devotee of the Supreme Personality of Godhead is considered to be the best. Among the many such transcendental lovers of the Supreme Personality of Godhead, the  gopīs  are the best, and among the  gopīs  Śrīmatī Rādhikā is the best. Śrīmatī Rādhikā is very dear to Lord Kṛṣṇa, and similarly Her ponds, namely, Śyāmakunda and Rādhākunda, are also very much dear to the Supreme Personality of Godhead.
Śrīla Bhaktisiddhānta Sarasvatī Thākura comments in his  Anubhāṣya  that among the five  tattvas , two are energies ( śakti-tattva ) and the three others are energetic ( śaktimān tattva ). Unalloyed and internal devotees are both engaged in the favorable culture of Kṛṣṇa consciousness untinged by philosophical speculation or fruitive activities. They are all understood to be pure devotees, and those among them who simply engage in conjugal love are called  mādhurya-bhaktas  or internal devotees. The potential loving services in parental love, fraternity and servitude are included in conjugal love of God. In conclusion, therefore, every confidential devotee is a pure devotee of the Lord.
Śrī Caitanya Mahāprabhu enjoys His pastimes with His immediate expansion Nityānanda Prabhu. His pure devotees and His three  puruṣa  incarnations, namely, Kāraṇodakaśāyī Viṣṇu, Garbhodakaśāyī Viṣṇu and Kṣīrodakaśāyī Viṣṇu, always accompany the Supreme Lord to propound the  saṅkīrtana  movement.
TEXTS 20-21
সেই পঞ্চতত্ত্ব মিলি’ পৃথিবী আসিয়া।
পূর্ব-প্রেমভাণ্ডারের মুদ্রা উঘাড়িয়া ॥ ২০ ॥
পাঁচে মিলি’ লুটে প্রেম, করে আস্বাদন।
যত যত পিয়ে, তৃষ্ণা বাঢ়ে অমুক্ষণ ॥ ২১ ॥