Lord Śrī Caitanya revived the original Vedic system, and He elevated Ṭhākura Haridāsa to the position of nāmācārya, or the authority in preaching the glories of the holy name of the Lord, although His Holiness Śrīla Haridāsa Ṭhākura was pleased to appear in a family of Mohammedans.
(Srimad Bhagavatam---1:18:18---purport).

The Lord may dictate to tigers and other jungle animals not to disturb His devotee. Haridāsa Ṭhākura, a great devotee of Lord Śrī Caitanya, used to live in such a cave, and by chance a great venomous snake was a co-partner of the cave. Some admirer of Ṭhākura Haridāsa who had to visit the Ṭhākura every day feared the snake and suggested that the Ṭhākura leave that place. Because his devotees were afraid of the snake and they were regularly visiting the cave, Ṭhākura Haridāsa agreed to the proposal on their account. But as soon as this was settled, the snake actually crawled out of its hole in the cave and left the cave for good before everyone present. By the dictation of the Lord, who lived also within the heart of the snake, the snake gave preference to Haridāsa and decided to leave the place and not disturb him. So this is a tangible example of how the Lord gives protection to a bona fide devotee likeṬhākura Haridāsa.
(Srimad Bhagavatam---2:2:5---purport).

It appears from the talks of Kaśyapa with his wife that he was a worshiper of Lord Śiva, and although he knew that Lord Śiva would not be pleased with him for such a forbidden act, he was obliged to act by his wife's desire, and thus he offered his obeisances unto fate. He knew that the child born of such untimely sexual intercourse would certainly not be a good child, but could not protect himself because he was too obligated to his wife. In a similar case, however, when Ṭhākura Haridāsa was tempted by a public prostitute at the dead of night, he avoided the allurement because of his perfection in Kṛṣṇa consciousness. That is the difference between a Kṛṣṇa conscious person and others. Kaśyapa Muni was greatly learned and enlightened, and he knew all the rules and regulations of systematic life, yet he failed to protect himself from the attack of sex desire. Ṭhākura Haridāsa was not born of a brāhmaṇa family, nor was he himself brāhmaṇa, yet he could protect himself from such an attack due to his being Kṛṣṇa conscious. Ṭhākura Haridāsa used to chant the holy name of the Lord three hundred thousand times daily.
(Srimad Bhagavatam---3:14:31---purport).

There is a very good example in the life of Haridāsa Ṭhākura. When Caitanya Mahāprabhu was residing at Jagannātha purī, Haridāsa Ṭhākura, who happened to be Muhammadan by birth, was with Him. In Hindu temples, especially in those days, no one but a Hindu was allowed to enter. Although Haridāsa Ṭhākura was the greatest of all Hindus in his behavior, he considered himself a Muhammadan and did not enter the temple. Lord Caitanya could understand his humility, and since he did not go to see the temple, Lord Caitanya Himself, who is nondifferent from Jagannātha, used to come and sit with Haridāsa Ṭhākura daily.
(Srimad Bhagavatam---3:16:2---purport).