Krsna confirms in BG 9.14: 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 mahatma engaged in the Lord’s service in full KC

Expressions researched:
"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"

Sri Caitanya-caritamrta

CC Madhya-lila

“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.

CC Madhya 11.48, Translation and Purport

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.

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

satataṁ kīrtayanto māṁ yatantaś 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.