When one is sufficiently eager to achieve success in devotional service, that eagerness is called samutkaṇṭhā. This means complete eagerness. Actually this eagerness is the price for achieving success in Kṛṣṇa consciousness. Everything has some value, and one has to pay the value before obtaining or possessing it. It is stated in the Vedic literature that to purchase the most valuable thing, Kṛṣṇa consciousness, one has to develop intense eagerness for achieving success. This intense eagerness is very nicely expressed by Bilvamaṅgala Thākur in his book Kṛṣṇa-karṇāmṛta. He says, "I am eagerly waiting to see that boy of Vṛndāvana whose bodily beauty is captivating the whole universe, whose eyes are always bounded by black eyebrows and expanded like lotus petals, who is always eagerly glancing over His devotees and therefore moving slightly here and there. His eyes are always moist, His lips are colored like copper, and through those lips there comes a sound vibration which drives one madder than a mad elephant. I want so much to see Him at Vṛndāvana!"

Chapter 18: Character of One in Ecstatic Love