PURPORT

The word atmaupamyena refers to thinking others to be like oneself. One can very intelligently conclude that without devotional service, without becoming Krsna conscious, one cannot be happy. Therefore the duty of all devotees is to preach Krsna consciousness everywhere all over the world, because all living entities without Krsna consciousness are suffering the pangs of material existence. To preach Krsna consciousness is the best welfare activity. Indeed, it is described by Sri Caitanya Mahaprabhu as para-upakara, work for the true benefit of others. The activities of para-upakara have been especially entrusted to those who have taken birth in India as human beings.