In the land of Bharata-varsa one can very easily perform the sankirtana-yajna, which consists of sravanam kirtanam visnoh [SB 7.5.23], or one can perform other methods of devotional service, such as smaranam vandanam arcanam dasyam sakhyam and atma-nivedanam. In Bharata-varsa one has the opportunity to visit many holy places, especially Lord Caitanyas birthsite and Lord Krsnas birthsiteNavadvipa and Vrndavanawhere there are many pure devotees who have no desire other than to execute devotional service (anyabhilasita-sunyam jnana-karmady-anavrtam [Madhya 19.167]), and one may thus become free from the bondage of material conditions. Other paths, such as the path of jnana and the path of karma, are not very profitable. Pious activities can elevate one to the higher planetary systems, and by speculative knowledge one can merge into the Brahman existence, but that is not real profit, for one has to come down again even from the liberated condition of being merged in Brahman, and certainly one must come down from the heavenly kingdom. One should endeavor to go back home, back to Godhead (yanti mad-yajino pi mam). Otherwise there is no difference between human life and the lives of jungle animals and birds. Animals and birds also have freedom, but because of their lower birth, they cannot use it. Taking advantage of all the facilities offered him, a human being who has taken birth in the land of Bharata-varsa should become a fully enlightened devotee and go back home, back to Godhead. This is the subject matter of the Krsna consciousness movement. The inhabitants of places other than Bharata-varsa have facilities for material enjoyment, but they do not have the same facility to take to Krsna consciousness. Therefore Sri Caitanya Mahaprabhu has advised that one who has taken birth as a human being in Bharata-varsa must first realize himself as a part and parcel of Krsna, and after taking to Krsna consciousness, he must distribute this knowledge all over the world.