Atma-nivedanam, full self-surrender, is the basis of all. After atma-nivedanam the plane of life will be categorically changed. After surrendering to the central direction, whatever will be done by us will come to have recognition as devotion. That is devotion. Atma-nivedanam is selflessness plus self-surrendering. Self-surrendering presupposes selflessness. Selfish actions come to an end and selflessness is also crossed, and then self-surrendered life begins - and that is devotion proper.