The gopīs' minds are always engaged in relishing the sweetness of Kṛṣṇa's body. He is the ocean of beauty, and His beautiful face and smile and the luster of His body are all-attractive to the minds of the gopīs. In kṛṣṇa-karṇāmṛta, His face, smile and bodily luster have been described as sweet, sweeter and sweetest. A perfect devotee of Kṛṣṇa is overwhelmed by seeing the beauty of Kṛṣṇa's bodily luster, His face and smile, and he bathes in the ocean of transcendental convulsions. Before Kṛṣṇa's beauty, these convulsions often continue without treatment, just as ordinary convulsions which a physician will allow to continue, not even allowing a drink of water for relief.
(Teachings of Lord Caitanya).

Such a devotee, being touched deeply by such strong desires, always chants Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.
In this regard, the following verse by Bilvamaṅgala appears in the kṛṣṇa-karṇāmṛta (32):
tvac chaiśavaṁ tri-bhuvanādbhutam ity avehi
mac cāpalaṁ ca tava vā mama vādhigamyam
tat kiṁ karomi viralaṁ muralīvilāsi
mugdhaḥ mukhāmbujam udīkṣitum īkṣaṇābhyām
"O Kṛṣṇa, O wonderful flute player, the beauty of Your boyhood activities is very wonderful in this world. You know the agitation of my mind, and I know what You are. No one knows how confidential our relationship is. Although my eyes are anxious to see You and Your face, I cannot see You. Please let me know what I shall do."
(Teachings of Lord Caitanya).

"O Govinda! This young girl with tears in her eyes is crying in a sweet voice, chanting Your glories." Such pure devotees are always anxious to describe the glories of Kṛṣṇa and to live in a place where He exhibited His pastimes. A similar verse appears again in kṛṣṇa-karṇāmṛta (92): "The body of Kṛṣṇa is so nice, and His face is so beautiful. Everything about Him is sweet and fragrant." And in Bhakti-rasāmṛta-sindhu (1.2.156): "O lotus-eyed one, when will I be able to always chant Your holy name, and being inspired by that chanting, when will I be able to dance on the banks of the Yamunā?"
(Teachings of Lord Caitanya).

One should not engage in fruitive activity or cultivate knowledge by mental speculation. One who is devoted to the Supreme Lord, Nārāyaṇa, can attain all the benefits derived from other processes, such as yoga, mental speculation, rituals, sacrifices, and charity. That is the specific benediction of devotional service.
And in the Kṛṣṇa-karṇāmṛta (107), Bilvamaṅgala Ṭhākura states:
bhaktis tvayi sthiratarā bhagavān yadi syād
daivena naḥ phalati divya-kiśora-mūrtiḥ
muktiḥ svayaṁ mukulitāñjali sevate 'sṁān
dharmārtha-kāma-gatayaḥ samaya-pratikṣāḥ
O Lord! If our devotion to You is undeviating, then Your ever-youthful form will spontaneously manifest within our heart. At that time liberation personified will serve us like a maidservant, and religiosity, economic development, and sense gratification (the other three goals of the Vedas) will humbly await our bidding.
(Renunciation through Wisdom).

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 Ṭhākura 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, and 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!"
(Nectar of devotion).

In the same Kṛṣṇa-karṇāmṛta there is another statement, about the chanting of Rādhārāṇī. It is said by one of the associates of Rādhārāṇī, "O Lord Govinda, the girl who is the daughter of King Vṛṣabhānu is now shedding tears, and She is anxiously chanting Your holy name—'Kṛṣṇa! Kṛṣṇa!' "
(Nectar of devotion).

Attachment for chanting the glories of the Lord is also expressed in the Kṛṣṇa-karṇāmṛta as follows: "What shall I do for Kṛṣṇa, who is pleasing beyond all pleasurable conceptions, and who is naughtier than all restless boys? The idea of Kṛṣṇa's beautiful activities is attracting my heart, and I do not know what I can do!"
(Nectar of devotion).

This was verified by Bilvamaṅgala Ṭhākura when in Kṛṣṇa-karṇāmṛta he addressed Kṛṣṇa thus: "My dear Lord, what can I say about the opulence of Your Vṛndāvana? Simply the ornaments on the legs of the damsels of Vṛndāvana are more than cintāmaṇi, and their dresses are as good as the heavenly pārijāta flowers. And the cows exactly resemble the surabhi cows in the transcendental abode. Therefore Your opulence is just like an ocean that no one can measure."
(Nectar of devotion).

Bilvamaṅgala Ṭhākura, in his book Kṛṣṇa-karṇāmṛta, says, "Let the impersonalists be engaged in the process of transcendental realization by worshiping the impersonal Brahman. Although I was also initiated into that path of Brahman realization, I have now become misled by a naughty boy—one who is very cunning, who is very much attached to the gopīs and who has made me His maidservant. So I have now forgotten the process of Brahman realization."
(Nectar of devotion).

In the Kṛṣṇa-karṇāmṛta, written by Bilvamaṅgala Ṭhākura, there is this expression of eagerness in ecstatic love: "How miserable it is, my dear Kṛṣṇa, O friend of the hopeless! O merciful Lord, how can I pass these thankless days without seeing You?" A similar sentiment was expressed by Uddhava when he wrote a letter to Kṛṣṇa and said, "My dear Supreme King of Vraja, You are the vision of nectar for the eyes, and without seeing Your lotus feet and the effulgence of Your body, my mind is always morose. I cannot perceive any peace under any circumstance. Besides that, I am feeling every moment's separation to be like the duration of many, many long years."
(Nectar of devotion).

In the Kṛṣṇa-karṇāmṛta it is also said, "My dear Lord, You are the ocean of mercy. With my arms placed upon my head, I am bowing down before You with all humility and sincerity. I am praying unto You, my Lord. Would You be pleased just to sprinkle a little of the water of Your glance upon me? That will be a great satisfaction."
(Nectar of devotion).

In the Kṛṣṇa-karṇāmṛta Bilvamaṅgala Ṭhākura has explained his restlessness as follows: "My dear Lord, Your naughtiness in boyhood is the most wonderful thing in the three worlds. And You Yourself know what this naughtiness is. As such, You can very easily understand my flickering mind. This is known to You and me. Therefore, I am simply yearning to know how I can fix my mind on Your lotus feet."
(Nectar of devotion).

When the devotee meets with Kṛṣṇa in great eagerness, that state of meeting is called perfection. In the Kṛṣṇa-karṇāmṛta, Bilvamaṅgala Ṭhākura describes how Kṛṣṇa meets His devotee—with peacock feather on His head, with marakata jewels on His chest and with His ever enchanting smile, His restless eyes and His very delicate body.
(Nectar of devotion).