At present, for want of Kṛṣṇa consciousness, or God consciousness, the entire world is in darkness, having been covered by the four principles of sinful life-meat-eating, illicit sex, gambling and intoxication. Therefore there is a need for vigorous propaganda to educate people to refrain from sinful activities. This will bring peace and prosperity; the rogues, thieves and debauchees will naturally decrease in number, and all of human society will be God conscious.
The practical effect of our spreading the Kṛṣṇa consciousness movement all over the world is that now the most degraded debauchees are becoming the most elevated saints. This is only one Indian’s humble service to the world. If all Indians had taken to this path, as advised by Lord Caitanya Mahāprabhu, India would have given a unique gift to the world, and thus India would have been glorified. Now, however, India is known as a poverty-stricken country, and whenever anyone from America or another opulent country goes to India, he sees many people lying by the footpaths for whom there are not even provisions for two meals a day. There are also institutions collecting money from all parts of the world in the name of welfare activities for poverty-stricken people, but they are spending it for their own sense gratification. Now, on the order of Śrī Caitanya Mahāprabhu, the Kṛṣṇa consciousness movement has been started, and people are benefiting from this movement. Therefore it is now the duty of the leading men of India to consider the importance of this movement and train many Indians to go outside of India to preach this cult. People will accept it, there will be cooperation among the Indian people and among the other people of the world, and the mission of Śrī Caitanya Mahāprabhu will then be fulfilled. Śrī Caitanya Mahāprabhu will then be glorified all over the world, and people will naturally be happy, peaceful and prosperous, not only in this life but also in the next, for as stated in the Bhagavad-gītā, anyone who understands Kṛṣṇa, the Supreme Personality of Godhead, will very easily get salvation, or freedom from the repetition of birth and death, and go back home, back to Godhead. Śrī Caitanya Mahāprabhu, therefore, requests every Indian to become a preacher of His cult to save the world from disastrous confusion.
Ref >> Srila Prabhupada Vani.