Q. When Chaitanya Mahaprabhu (He is Krishna Himself) came to this world, He preached in India only. Why did He not preach all over world (i.e. out of India)? Even though He is the all merciful incarnation of Krishna, why did He not show mercy to all the people in the world?
A. Lord Chaitanya issued the order five hundred years ago that His holy name will be heard in every town and village of the world. And we see that since then many great spiritual leaders have tried to execute this order in various capacities. In fact, this effort will continue for the next ten thousand years till the mission is completed.
One way to estimate the greatness of a person is by observing how many people work under him carrying out his orders. Usually, the legacy established by a great leader does not last beyond a few generations. But the order issued by Lord Chaitanya carries so much potency that even without His physical presence, His legacy continues to expand. If it were not His direct empowerment, how do you think today’s preachers are able to preach all over the world? The all-merciful Lords, Sri Sri Gaura-Nitai, continue to remain the real preachers under whom all others are acting as instruments.
As Paramatma, Lord Caitanya doesn’t even need to preach. He can make everyone a pure devotee simply by His will. However, it is our great fortune that the Lord did not finish the preaching work during His manifested lila. He has left the mission in our hands so that we can complete the mission on His behalf. The Lord in turn gives us all credit for helping His mission, just as Krishna gave all credit to Arjuna for winning the Battle of Kurukshetra.