CC Antya 12.4

ataḥpara mahāprabhura viṣaṇṇa-antara
kṛṣṇera viyoga-daśā sphure nirantara
Word for word: 
ataḥpara — thereafter; mahāprabhura — of Śrī Caitanya Mahāprabhu; viṣaṇṇa-antara — morose mind; kṛṣṇera — of Kṛṣṇa; viyoga-daśā — feeling of separation; sphure — manifests; nirantara — continuously.
Translation: 
The mind of Śrī Caitanya Mahāprabhu was always morose because of a continuously manifested feeling of separation from Kṛṣṇa.