He was mad after Kṛṣṇa. That is the, I mean to say, process of Caitanya philosophy. It is called viraha. Viraha means separation. Separation. "Kṛṣṇa, You are so good, You are so merciful, You are so nice. But I am so rascal, I am so full of sin, that I cannot see You. I have no qualification to see You."
So in this way, if one feels the separation of Kṛṣṇa, that "Kṛṣṇa, I want to see You, but I am so disqualified that I cannot see You," these feelings of separation will make you enriched in Kṛṣṇa consciousness. feelings of separation. Not that, "Kṛṣṇa, I have seen you. Finished. All right. I have understood You. Finished. All my business finished." No! Perpetually think of yourself that, "I am unfit to see Kṛṣṇa." That will enrich you in Kṛṣṇa consciousness.
Caitanya Mahāprabhu displayed this, these feelings of separation. This is Rādhārāṇī's separation. When Kṛṣṇa went from Vṛndāvana to His place, His father's place, and Rādhārāṇī was feeling in that way, always mad after Kṛṣṇa. So Kṛṣṇa Caitanya, Caitanya Mahāprabhu, took the separation feeling of Rādhārāṇī. That is the best way of worshiping Kṛṣṇa, or becoming Kṛṣṇa conscious.
So you know that Lord Caitanya fell on the sea. "Kṛṣṇa, if You are in the sea? Kṛṣṇa, if You are here? Kṛṣṇa, if You are here?" Similarly, the next devotees, Lord Caitanya's direct disciples, Gosvāmīs, Rūpa Gosvāmī, Sanātana Gosvāmī, they also, the same disciplic succession, they also worship Kṛṣṇa in that separation feeling. There is a nice verse about them: (sings)
- he rādhe vraja-devike ca lalite he nanda-sūno kutaḥ
- śrī-govardhana-kalpa-pādapa-tale kālindī-vane kutaḥ
- ghoṣantāv iti sarvato vraja-pure khedair mahā-vihvalau
- vande rūpa-sanātanau raghu-yugau śrī-jīva-gopālakau
- (Śrī Śrī Ṣaḍ-gosvāmy-aṣṭaka)
These Gosvāmīns also, later on, when they were very much mature in devotional service, what they were doing? They were daily in the vṛndāvana-dhāma, just like a mad man: "Kṛṣṇa, where You are?" That is the qualification.