CC Madhya 17.137

brahmānanda haite pūrṇānanda līlā-rasa
brahma-jñānī ākarṣiyā kare ātma-vaśa
Word for word: 
brahma-ānanda — the pleasure of self-realization; haite — from; pūrṇa-ānanda — complete pleasure; līlā-rasa — the mellows of the pastimes of the Lord; brahma-jñānī — those who are on the platform of Brahman understanding; ākarṣiyā — attracting; kare — make; ātma-vaśa — subordinate to Kṛṣṇa.
Translation: 
“The mellows of Lord Kṛṣṇa’s pastimes, which are full of bliss, attract the jñānī from the pleasure of Brahman realization and conquer him.
Purport: 

When one understands that he belongs not to the material world but to the spiritual world, one is called liberated. Being situated in the spiritual world is certainly pleasurable, but those who realize the transcendental name, form, qualities and pastimes of Lord Kṛṣṇa enjoy transcendental bliss many times more than one who has simply realized the self. When one is situated on the platform of self-realization, he can certainly be easily attracted by Kṛṣṇa and become a servant of the Lord. This is explained in the Bhagavad-gītā (18.54):

brahma-bhūtaḥ prasannātmāna śocati na kāṅkṣati
samaḥ sarveṣu bhūteṣu
mad-bhaktiṁ labhate parām

“One who is thus transcendentally situated at once realizes the Supreme Brahman and becomes fully joyful. He never laments or desires to have anything. He is equally disposed to every living entity. In that state he attains pure devotional service unto Me.”

When one becomes spiritually realized (brahma-bhūta), he becomes happy (prasannātmā), for he is relieved from material conceptions. One who has attained this platform is not agitated by material action and reaction. He sees everyone on the platform of spirit soul (paṇḍitāḥ sama-darśinaḥ). When one is completely realized, he can rise to the platform of pure devotional service (mad-bhaktiṁ labhate parām). When one comes to the platform of bhakti, devotional service, he automatically realizes who Kṛṣṇa is. As the Lord says in the Bhagavad-gītā (18.55):

bhaktyā mām abhijānātiyāvān yaś cāsmi tattvataḥ
tato māṁ tattvato jñātvā
viśate tad-anantaram

“One can understand Me as I am, as the Supreme Personality of Godhead, only by devotional service. And when one is in full consciousness of Me by such devotion, he can enter into the kingdom of God.”

It is only on the bhakti platform that one can understand the Supreme Personality of Godhead Kṛṣṇa and His transcendental name, form, qualities, pastimes and entourage. Being thus qualified spiritually, one is allowed to enter the spiritual kingdom of God and return home, back to Godhead (viśate tad-anantaram).