This material world is so contaminated that even you are on the sattva-guṇa, there is chance of being contaminated by the rajas-tamo guṇa. The struggle is there. Therefore we have to become very, very careful. Or Kṛṣṇa will help. If you want to remain in sattva-guṇa, in purity, then Kṛṣṇa will help. Just like here, as soon as Brahmā was disturbed by the demons full of rajo-guṇa and tamo-guṇa, immediately the Lord came in Hayagrīva-mūrti incarnation. That is . . . Kṛṣṇa is also very much anxious to give us . . . Kaunteya pratijānīhi na me bhaktaḥ pranaśyati (BG 9.31).
If you remain a pure devotee, always surrendered to Kṛṣṇa, you should know it very well that Kṛṣṇa will give you protection in any calamity. Don't be worried. Simply we must have the faith. That is surrender. Surrender means avaśya rakṣibe kṛṣṇa, viśvāsa pālana (Śaraṇāgati). You must be faithful that "I am engaged in Kṛṣṇa's service. I may go to hell or heaven, it doesn't matter. I am going to serve Him. It is sure that Kṛṣṇa will give me protection." So there should be no hesitation. If somebody is ordered, "Go to hell and preach Kṛṣṇa consciousness," he should remain faithful to Kṛṣṇa, and Kṛṣṇa will give him all protection.