Since there is nothing that is beyond His power, there’s no one better to depend on than Kṛṣṇa. When the cowherd boys of Vṛndāvana came across the demon Aghāsura, who had taken on the form of a giant python and whose open mouth resembled a vast cave that stretched up into the clouds, they were unafraid to enter the demon’s mouth. In fact, Śrīmad-Bhāgavatam 10.12.24 mentions that the cowherd boys laughed loudly and clapped their hands as they entered Aghāsura’s mouth. They had full faith that Kṛṣṇa would protect them, and thus they felt no fear.
When we are completely dependent on Kṛṣṇa, we become fearless and are willing to take on any risk in order to share Kṛṣṇa consciousness with others. On our own, we cannot achieve much, but if we allow Kṛṣṇa to use us as His instrument, we will be able to achieve incredible things. Śrīla Prabhupāda is the perfect example of this; because he was fully surrendered to Kṛṣṇa and desired only to serve Him, Prabhupāda achieved far more than any ordinary person could ever dream of achieving.