CC Madhya 11.48

tāṅra pratijñā — more nā karibe daraśana
mora pratijñā — tāṅhā vinā chāḍiba jīvana
Word for word: 
tāṅra pratijñā — His determination; more — unto me; — not; karibe — will do; daraśana — seeing; mora pratijñā — my promise; tāṅhā vinā — without Him; chāḍiba — I will give up; jīvana — life.
Translation: 
Mahārāja Pratāparudra continued, “If Śrī Caitanya Mahāprabhu is determined not to see me, then I am determined to give up my life if I do not see Him.
Purport: 

A devotee with Mahārāja Pratāparudra’s determination will certainly be victorious in advancing in Kṛṣṇa consciousness. Śrī Kṛṣṇa confirms this in the Bhagavad-gītā (9.14):

satataṁ kīrtayanto māṁyatantaś ca dṛḍha-vratāḥ
namasyantaś ca māṁ bhaktyā
nitya-yuktā upāsate

“Always chanting My glories, endeavoring with great determination, bowing down before Me, these great souls perpetually worship Me with devotion.”

These are the symptoms of a mahātmā engaged in the Lord’s service in full Kṛṣṇa consciousness. Thus Mahārāja Pratāparudra’s determination is very much exalted and is called dṛḍha-vrata. Because of this determination, he was finally able to receive Lord Caitanya’s direct mercy.