“By chanting this Hare Krishna mantra, we shall be delivered from all the difficulties of this material world.”
This is from the Srimad-Bhagavatam 8.6.15
[This chapter of the Srimad-Bhagavatam is entitled “The Demigods and Demons Declare a Truce.” It describes how the Lord appeared before the demigods when they offered Him their prayers. Following the advice of the Supreme Personality of Godhead, the demigods executed a truce with the demons for the purpose of churning nectar from the sea.]
I [Lord Brahma], Lord Shiva and all the demigods, accompanied by the prajapatis like Daksa, are nothing but sparks illuminated by You, who are the original fire. Since we are particles of You, what can we understand about our welfare? O Supreme Lord, please give us the means of deliverance that is suitable for the brahmanas and demigods.
We cannot invent any means to be delivered from the dangers of material existence.
Here, even the demigods, such as Lord Brahma and Lord Siva, and the prajapatis, such as Daksa, are said to be like illuminating sparks in the presence of the Supreme Lord, who is compared to a great fire.
Sparks are beautiful as long as they are in the fire. Similarly, we have to remain in the association of the Supreme Personality of Godhead and always engage in devotional service, for then we shall always be brilliant and illuminating. As soon as we fall from the service of the Lord, our brilliance and illumination will immediately be extinguished, or at least stopped for some time.
When we living entities, who are like sparks of the original fire, the Supreme Lord, fall into a material condition, we must take the mantra from the Supreme Personality of Godhead as it is offered by Sri Chaitanya Mahaprabhu. By chanting this Hare Krishna mantra, we shall be delivered from all the difficulties of this material world.